Teaching physics to biology students



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Topic: Science > Physics
User: ""
Date: 22 Feb 2006 05:19:00 AM
Object: Teaching physics to biology students
Hi,
I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.
Thanks - Leon
.

User: ""

Title: Re: Teaching physics to biology students 13 Mar 2006 07:14:59 AM
In article <dv1guk$qh1$2@rainier.uits.indiana.edu>,
(Gregory L. Hansen) wrote:

In article <dv13d9$8qk_001@s929.apx1.sbo.ma.dialup.rcn.com>,
<

> wrote:

In article <20060312062343.O70045@emu.uq.edu.au>,
Timo Nieminen <uqtniemi@mailbox.uq.edu.au> wrote:

On Sat, 11 Mar 2006

wrote:

Timo Nieminen <uqtniemi@mailbox.uq.edu.au> wrote:


Clearly, the best choice, in terms of cost, would have been to hire
a flunky at $10/hour to do data entry, another flunky at $10/hour to

check

the entered data and fix errors, and then pay a physics undergrad

student

$100/hour for 1 hour to write code to convert. It's always all about
management failure, isn,t it?


But it would have taken somebody with $5000/hr. experience to
figure this out. It is much easier to have only one body to
beat up when things are late than a new employee sector.


I hope not, since I thought it was plainly obvious.


It's only obvious to those looking from the outside in.
IME, the people who owned the data would get too caught up
in the details. It's rather like a car. You own an old
car that you've nursed through all kinds of breakdowns,
tuneups, bandaids, gum and spit but the CEO of the company
that manufactured it didn't care about it at all.

People care about their data. Even converting it is traumatic.

OTOH, maybe it means I
should increase my standard consultancy fee :)


Perhaps you should :-). Somebody told the story of a guy hired
to fix a blockage of some sort. He walked around the plant for
a while then took out his wrench and hit a pipe. It fixed the
problem. Then he sent a bill for his work, $5000. The company
objected and asked for an itemized bill. He charged two bucks
for labor and $4998 for knowing where to hit.

I've told this story badly; the one I read was written better.


I got another story from an electronics newsgroup of a guy who was hired
as a consultant. He redesigned a particular circuit so that it used fewer
parts and could be manufactured more cheaply and reliably. And they
didn't want to pay him. They looked at the much-reduced circuit diagram
and said something like "We're paying you $xxxx for THIS?"

He gave them exactly what they asked for, and it can take a great deal of
skill to make something simple. But then it looks easy.

Yup. I'm reminded of the Pied Piper story when people do this.
/BAH
.

User: "Andy Resnick"

Title: Re: Teaching physics to biology students 01 Mar 2006 10:01:24 AM
Timo Nieminen wrote:

On Tue, 28 Feb 2006, Andy Resnick wrote:

jmfbahciv@aol.com wrote:

Andy Resnick <andy.resnick@op.case.edu> wrote:

This afternoon it's my turn to present at Journal Club. I'm the
only physicist in the group, and I make a point of picking a physics
paper. This term I picked "Freezing Transition of Interfacial Water
at Room Temperature under Electric Fields"... it's a PRL paper, but
it has clear biological implications. We'll see how well I do...



Progress report? If you have the time, and don't mind.



Heh... well, let's see... the paper turned out to be a dud: there's an
erratum which nullifies their main result. The good news is that only
3 people showed up to hear about it (there's about 8 in the group).

Oh well, there's always next time.....



Give them my microrheometer paper. Tell them that this could be used to
measure viscoelastic properties inside cells. Let them think about that
for a while, and then ask them why it hasn't been done yet (by us or by
others).

Last time I used "Time scale and other invariants of integrative
mechanical behavior in living cells", Phys Rev E Stat Nonlin Soft Matter
Phys. 2003 Oct;68(4 Pt 1):041914. This was an impressive paper, but I
think I lost the audience when I talked about scaling.
--
Andrew Resnick, Ph.D.
Department of Physiology and Biophysics
Case Western Reserve University
.
User: "Timo Nieminen"

Title: Re: Teaching physics to biology students 01 Mar 2006 02:02:11 PM
On Wed, 1 Mar 2006, Andy Resnick wrote:

Timo Nieminen wrote:

On Tue, 28 Feb 2006, Andy Resnick wrote:

jmfbahciv@aol.com wrote:

Andy Resnick <andy.resnick@op.case.edu> wrote:

This afternoon it's my turn to present at Journal Club. I'm the only
physicist in the group, and I make a point of picking a physics paper.
This term I picked "Freezing Transition of Interfacial Water at Room
Temperature under Electric Fields"... it's a PRL paper, but it has clear
biological implications. We'll see how well I do...


Progress report? If you have the time, and don't mind.


Heh... well, let's see... the paper turned out to be a dud: there's an
erratum which nullifies their main result. The good news is that only 3
people showed up to hear about it (there's about 8 in the group).

Oh well, there's always next time.....


Give them my microrheometer paper. Tell them that this could be used to
measure viscoelastic properties inside cells. Let them think about that for
a while, and then ask them why it hasn't been done yet (by us or by
others).


Last time I used "Time scale and other invariants of integrative mechanical
behavior in living cells", Phys Rev E Stat Nonlin Soft Matter Phys. 2003
Oct;68(4 Pt 1):041914. This was an impressive paper, but I think I lost the
audience when I talked about scaling.

Do they read the paper first?
How can you lose an audience when talking about scaling? Scaling is what
the way that life is built is all about. Why animals above a certain size
can't be built like an overgrown single cell, and all that.
The general impenetrability of the literature is a problem; sometimes it's
not even enough to be working in the general area of physics that the
paper is about, sometimes one needs to be in one of the 6 groups in the
world working on the specific thing. The non-physicist doesn't have that
much chance of understanding the literature. But I'm sure you know that it
works both ways, that the bio literature can be equally impenetrable to
the physicist at first.
(It just so happened yesterday that I suggested that we do something with
the inside of a cell. The experimental team were not amused.)
--
Timo Nieminen - Home page: http://www.physics.uq.edu.au/people/nieminen/
E-prints: http://eprint.uq.edu.au/view/person/Nieminen,_Timo_A..html
Shrine to Spirits: http://www.users.bigpond.com/timo_nieminen/spirits.html
.
User: "Andy Resnick"

Title: Re: Teaching physics to biology students 02 Mar 2006 12:20:25 PM
Timo Nieminen wrote:

On Wed, 1 Mar 2006, Andy Resnick wrote:

<snip>

Last time I used "Time scale and other invariants of integrative
mechanical behavior in living cells", Phys Rev E Stat Nonlin Soft
Matter Phys. 2003 Oct;68(4 Pt 1):041914. This was an impressive
paper, but I think I lost the audience when I talked about scaling.



Do they read the paper first?

In theory. We are supposed to. In practice, we rarely do.

How can you lose an audience when talking about scaling? Scaling is what
the way that life is built is all about. Why animals above a certain
size can't be built like an overgrown single cell, and all that.

That kind of scaling is fine, but when scaling refers to a parameter
than is not strictly physical, like a "noise equivalent temperature", or
"characteristic timescale", their eyes glaze over. In their mind,
non-physical parameters are useless. And they don't understand why a
master curve has any use. Red blood cells and osteocytes are different-
"making up" something so that their curves lie on top of each other is
considered useless theorizing. Theorizing in general is frowned upon in
biology.

The general impenetrability of the literature is a problem; sometimes
it's not even enough to be working in the general area of physics that
the paper is about, sometimes one needs to be in one of the 6 groups in
the world working on the specific thing. The non-physicist doesn't have
that much chance of understanding the literature. But I'm sure you know
that it works both ways, that the bio literature can be equally
impenetrable to the physicist at first.

This is absolutely true. And it's an ongoing struggle, as science
progresses and technology improves.
--
Andrew Resnick, Ph.D.
Department of Physiology and Biophysics
Case Western Reserve University
.



User: ""

Title: Re: Teaching physics to biology students 23 Feb 2006 06:41:46 AM
wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.

That's the way all biology is, after the Eve Geners took over.
It's no longer science, It's all quantum tatoo-math, based
on physicists misconception that the speed of light
is entropic and constant.

In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Thanks - Leon

.

User: "Sam Wormley"

Title: Re: Teaching physics to biology students 22 Feb 2006 08:48:44 AM
wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Thanks - Leon

I applaud you and so will some of your students--that you made them
think! If you don't challenge your student, they are not likely to
learn much. Don't back down... your student deserve to be challenged!
-Sam Wormley
.

User: ""

Title: Re: Teaching physics to biology students 22 Feb 2006 06:40:34 AM
wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Thanks - Leon

There is a simple solution to your problem, Leon.
Visit my web site.
Download the PDF file.
Study it for a couple of days.
Merge it with your course materials.
And all of your students will end up
in one semester knowing more about physics
than most engineers and physicists.
In other words, they will know and comprehend physics,
and be able to compose their equations
and laws of physics,
and not have to bother with a lot of isolated facts, effects and
equations
that don't tie together.
You will be a great hero,
as your students will be far ahead of the
students in physics, chemistry and engineering,
in comprehending the laws of nature.
--
Tom Potter
http://no-turtles.com
http://photos.yahoo.com/tdp1001
http://spaces.msn.com/tdp1001
http://tom-potter.blogspot.com
.
User: "Dirk Van de moortel"

Title: Re: Teaching physics to biology students 22 Feb 2006 07:32:48 AM
<tdp1001@gmail.com> wrote in message news:1140612034.898041.198530@g44g2000cwa.googlegroups.com...


lgardner@flsouthern.edu wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Thanks - Leon


There is a simple solution to your problem, Leon.

Visit my web site.
Download the PDF file.

and laugh your bottom inside out:
http://users.telenet.be/vdmoortel/dirk/Physics/Fumbles/PotterTable.html
:-)
Dirk Vdm
.
User: ""

Title: Re: Teaching physics to biology students 22 Feb 2006 10:01:16 PM
Dirk Van de moortel wrote:

<tdp1001@gmail.com> wrote in message news:1140612034.898041.198530@g44g2000cwa.googlegroups.com...


lgardner@flsouthern.edu wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Thanks - Leon


There is a simple solution to your problem, Leon.

Visit my web site.
Download the PDF file.


and laugh your bottom inside out:

I am pleased to see that Dork Moortel
read the PDF file and enjoyed it.
As can be seen, the article entertains, while
defining the physical properties and the four forces
in terms of time periods and time intervals,
and it explains why the constants such as C, h, e, G, and Z arise.
Furthermore, the article develops a unique Physics Property Chart
that shows the relationships between the physical properties,
much as the Periodic Chart shows the relationships between the
elements.
I suggest that folks who like to be entertained while learning,
visit my web site and download and read the PDF file.
--
Tom Potter
http://no-turtles.com
http://photos.yahoo.com/tdp1001
http://spaces.msn.com/tdp1001
http://tom-potter.blogspot.com
.

User: ""

Title: Re: Teaching physics to biology students 22 Feb 2006 07:46:45 AM
In article <4KZKf.272872$Zo3.8931550@phobos.telenet-ops.be>,
"Dirk Van de moortel" <dirkvandemoortel@ThankS-NO-SperM.hotmail.com> wrote:
<snip...piggybacking>

lgardner@flsouthern.edu wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

You need to expect this kind of response. Apparently, your
school's biology degree program is issuing sheepskin that
aren't worth using for toilet paper. They are continuing the
babysitting philosophy of teaching started by Headstart in
1968. If you were me, I'd continue to make the kids think
and work. But I'm different--threats of firing never stopped me.
<snip>
/BAH
.


User: "Sam Wormley"

Title: Re: Teaching physics to biology students 22 Feb 2006 08:51:21 AM
wrote:

lgardner@flsouthern.edu wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Thanks - Leon



There is a simple solution to your problem, Leon.

Visit my web site.
Download the PDF file.
Study it for a couple of days.
Merge it with your course materials.
And all of your students will end up
in one semester knowing more about physics
than most engineers and physicists.

In other words, they will know and comprehend physics,
and be able to compose their equations
and laws of physics,
and not have to bother with a lot of isolated facts, effects and
equations
that don't tie together.

You will be a great hero,
as your students will be far ahead of the
students in physics, chemistry and engineering,
in comprehending the laws of nature.

--
Tom Potter
http://no-turtles.com
http://photos.yahoo.com/tdp1001
http://spaces.msn.com/tdp1001
http://tom-potter.blogspot.com

Christ Potter--Your are a registered crank and you don't
know ***** about physics. Go away!
http://www.google.com/search?q=%22Tom+Potter%22+site%3Awww.crank.net
.
User: ""

Title: Re: Teaching physics to biology students 22 Feb 2006 09:16:07 PM
Sam Wormley wrote:

tdp1001@gmail.com wrote:

lgardner@flsouthern.edu wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Thanks - Leon



There is a simple solution to your problem, Leon.

Visit my web site.
Download the PDF file.
Study it for a couple of days.
Merge it with your course materials.
And all of your students will end up
in one semester knowing more about physics
than most engineers and physicists.

In other words, they will know and comprehend physics,
and be able to compose their equations
and laws of physics,
and not have to bother with a lot of isolated facts, effects and
equations
that don't tie together.

You will be a great hero,
as your students will be far ahead of the
students in physics, chemistry and engineering,
in comprehending the laws of nature.

--
Tom Potter
http://no-turtles.com
http://photos.yahoo.com/tdp1001
http://spaces.msn.com/tdp1001
http://tom-potter.blogspot.com


Christ Potter--Your are a registered crank and you don't
know ***** about physics. Go away!
http://www.google.com/search?q=%22Tom+Potter%22+site%3Awww.crank.net

I have taken the liberty of posting
the resume of Sam Wormley's primary reference,
in order to give some indication of Sam's motives, integrity, and
intellect.
Excerpts from Sam's primary reference source's resume follows.
===================================================
Erik Max Francis
San Jose, CA, USA
Formats: HTML, text, PostScript, PDF.
EMAIL

WEB http://www.alcyone.com/max/
UPDATED 2004 Jun 19
OBJECTIVE
To obtain gainful employment in a challenging position at a
forward-looking company, utilizing my particular skills and talents
under a Unix, Unix-like, or platform-agnostic environment.
SKILLS
Operating systems: Linux, Solaris and other Unix-like operating systems
(System V and BSD); IRIX, OpenBSD, NetBSD, etc.
WORK EXPERIENCE
Voluntary time off work. (2002-)
Pursued recreational programming projects and released numerous open
source contributions; familiarized self with basics of new languages
such as APL/J, Io, Scheme, Tcl; strengthened Python programming skills;
increased Python programming community involvement (see Relevant
Activities below).
EDUCATION
Attended De Anza College (Cupertino, CA), with particular emphasis on
computer science courses.
==================
End of quote.
If anyone can use an unemployed, maladjusted programmer,
get in contact with Sam's primary reference.
On the other hand, if you need a stable cleaned,
or some manure spread,
get in touch with Sam.
And if you want to read an article that features
a unique Physical Properties Chart
that shows the relationships between the physical properties
much as the Periodic Chart shows the relationship between the elements,
visit my web site.
--
Tom Potter
http://no-turtles.com
http://photos.yahoo.com/tdp1001
http://spaces.msn.com/tdp1001
http://tom-potter.blogspot.com
.



User: "PD"

Title: Re: Teaching physics to biology students 22 Feb 2006 03:02:12 PM
wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Thanks - Leon

This is a tricky business, because physics requires a fundamentally
different skill set than biology or organic chemistry or anatomy and
physiology, which is what most of your premed audience is used to. In
those subjects, memorization of detail *is* a key skill. That's the
reason why textbook publishers in those subjects provide teaching
versions of the illustrations in the book without labels on them, so
teachers can ask, "What's this? What's that called? Where's the
epiglottis in this picture? Which one is the dimethyl ether group?"
Moreover, in each of those other subjects, specialized analysis
pertinent to a particular example is the norm. There, it's: For case
417, you use Procedure 417; for case 423, you use Procedure 423A or
423B.
All of this is completely foreign to physicists, and as a result they
have no sympathy when a student who is working a problem just wants to
know the correct formula to use, or which worked example to follow. It
also bothers premed students that they are expected to *synthesize*,
not to memorize. It bothers them that they are expected to sketch a
problem to demonstrate they understand it -- this is not required in
any other course they encounter.
Teaching physics to this audience therefore demands you actively
reinforce to them that this is NOT what they think it is, and that
their strategy for absorbing science (other sciences) does NOT work
with physics. And you have to work them hard to practice skills that
are completely foreign to them. You'd be amazed how hard it is for a
premed student to look at a problem and explain *in words* and *in a
diagram* what's going on physically there. It's even harder for them to
look at a problem about the differential pressure on a car window at
highway speed and one about a hydraulic jack in a garage and tell you
what's *common* about those two problems. If you force them to practice
those basic new skills, you'll find that they start thinking like
physicists, but it does *not* come naturally to them. The clash in the
basic approach to how to think about the science is what's at the root
of most of the vapor lock. A lot of physicists think it's math phobia
that's the most serious problem, but it's really not.
If it helps, just keep in mind that all the things that you *hate*
about biology and anatomy and physiology and organic chemistry is
precisely what they want to do in your physics class.
PD
.
User: "Dirk Van de moortel"

Title: Re: Teaching physics to biology students 22 Feb 2006 03:14:35 PM
"PD" <TheDraperFamily@gmail.com> wrote in message news:1140642132.913628.126820@z14g2000cwz.googlegroups.com...


lgardner@flsouthern.edu wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Thanks - Leon


This is a tricky business, because physics requires a fundamentally
different skill set than biology or organic chemistry or anatomy and
physiology, which is what most of your premed audience is used to. In
those subjects, memorization of detail *is* a key skill. That's the
reason why textbook publishers in those subjects provide teaching
versions of the illustrations in the book without labels on them, so
teachers can ask, "What's this? What's that called? Where's the
epiglottis in this picture? Which one is the dimethyl ether group?"

Moreover, in each of those other subjects, specialized analysis
pertinent to a particular example is the norm. There, it's: For case
417, you use Procedure 417; for case 423, you use Procedure 423A or
423B.

All of this is completely foreign to physicists, and as a result they
have no sympathy when a student who is working a problem just wants to
know the correct formula to use, or which worked example to follow. It
also bothers premed students that they are expected to *synthesize*,
not to memorize. It bothers them that they are expected to sketch a
problem to demonstrate they understand it -- this is not required in
any other course they encounter.

Teaching physics to this audience therefore demands you actively
reinforce to them that this is NOT what they think it is, and that
their strategy for absorbing science (other sciences) does NOT work
with physics. And you have to work them hard to practice skills that
are completely foreign to them. You'd be amazed how hard it is for a
premed student to look at a problem and explain *in words* and *in a
diagram* what's going on physically there. It's even harder for them to
look at a problem about the differential pressure on a car window at
highway speed and one about a hydraulic jack in a garage and tell you
what's *common* about those two problems. If you force them to practice
those basic new skills, you'll find that they start thinking like
physicists, but it does *not* come naturally to them. The clash in the
basic approach to how to think about the science is what's at the root
of most of the vapor lock. A lot of physicists think it's math phobia
that's the most serious problem, but it's really not.

If it helps, just keep in mind that all the things that you *hate*
about biology and anatomy and physiology and organic chemistry is
precisely what they want to do in your physics class.

And perhaps even worse, that most of the things he *loves*
about physics is precisely what they *don't* want to do in the
physics class. Tragedy :-(
Nice post, P - well put , as always.
Dirk Vdm
.

User: "Gregory L. Hansen"

Title: Re: Teaching physics to biology students 23 Feb 2006 03:09:25 PM
In article <1140642132.913628.126820@z14g2000cwz.googlegroups.com>,
PD <TheDraperFamily@gmail.com> wrote:


lgardner@flsouthern.edu wrote:
physicists, but it does *not* come naturally to them. The clash in the
basic approach to how to think about the science is what's at the root
of most of the vapor lock. A lot of physicists think it's math phobia
that's the most serious problem, but it's really not.

I remember one professor saying that the physics students themselves
complained that they had trouble with the math. But if the problem is set
up for them and reduced to equations, they could complete it without
difficulty. It wasn't the math that they had a problem with.
Physics is like a specialization of that type of math problem that most
lower level school children loathe-- the word problem.
You had some interesting insights there. But I'm always suspicious when
one person describes how another person must feel. How certain are you?
--
Irony: "Small businesses want relief from the flood of spam clogging their
in-boxes, but they fear a proposed national 'Do Not Spam' registry will
make it impossible to use e-mail as a marketing tool."
http://www.bizjournals.com/houston/stories/2003/11/10/newscolumn6.html
.
User: ""

Title: Re: Teaching physics to biology students 24 Feb 2006 06:35:26 AM
In article <dtl8a5$6tv$6@rainier.uits.indiana.edu>,
(Gregory L. Hansen) wrote:

In article <1140642132.913628.126820@z14g2000cwz.googlegroups.com>,
PD <TheDraperFamily@gmail.com> wrote:


lgardner@flsouthern.edu wrote:


physicists, but it does *not* come naturally to them. The clash in the
basic approach to how to think about the science is what's at the root
of most of the vapor lock. A lot of physicists think it's math phobia
that's the most serious problem, but it's really not.


I remember one professor saying that the physics students themselves
complained that they had trouble with the math. But if the problem is set
up for them and reduced to equations, they could complete it without
difficulty. It wasn't the math that they had a problem with.

Good grief. That's why we made computers...so people didn't have
to do the boring repetitive work. The best part of math is
setting up the problems or proving a new theorem so you can
do a setup that's never been done before.


Physics is like a specialization of that type of math problem that most
lower level school children loathe-- the word problem.

I understand this myth. Kids love to play. They hate being bored.
Look at all the kids who have to be drugged because they don't
sit still when boredom is unbearable. They do "word problems"
every time they are allowed to play; organized thingies are not
play.
<snip>
/BAH
.



User: "QCD Apprentice"

Title: Re: Teaching physics to biology students 22 Feb 2006 08:24:17 AM
wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.
I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Unfortunately, from my experience as a TA teaching an
equivalent class at my university last year, I think you're
going to have to just expect that kind of response.
I don't know what it is, but physics and math classes
activate some kindof "whining hormone" production that
stimulates complaints and feelings of martyrdom.
Are you curving the exams at all? I think putting the
average around a BC or B might help things. Mostly I think
the students actually freak out because a good portion of
them want to be doctors, and medical schools often demand
nearly straight A averages (or at least that's what the
students think). A single C seems to kill their aspirations
of ever getting into a program they'd like, and so they
think you're just trying to ruin their lives.
Also, you might want to try making the exams *slightly* more
like their homework, with maybe a couple of problems being
straight up variations on practice problems they already
did. That might make things feel less "unfair".
I know how miserable this can be, and you have my full
sympathies. Good luck.
.

User: ""

Title: Re: Teaching physics to biology students 12 Mar 2006 06:59:05 PM
wrote:

Hi,

Hi Leon

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
From my experience, I wouldn't say that the students don't necessarily

put any work into biology classes, the problem is that the type of work
they do is completely different from the type of work you're expecting
them to do. Effectively, the easiest way to get an A in a biology
course these days is just sit down and memorize every word in the text
and/or lecture notes, so that you can regurgitate it on the exam. The
problem is that, in general, this doesn't work in a physics course (nor
should it).
Another problem I've run into is that these students often have
mathematics skills that are frankly dreadful. Something as simple as
solving a linear system of two equations in two unknowns may well be
beyond their ability. Thus now your students have the combined problem
that not only are you assigning them problems that cannot simply be
recalled from the text, but also, you are assigning problems that they
may have forgotten the relavent mathematics necessary to solve them.
Although, just between you and me, if they have trouble with really
trivial mathematics, I honestly don't believe they should be doing a
science degree anyway. I don't know personally how well it works, but
I've heard of some profs in these types of classes having students
write (for no credit) an exam at the start of the course that covers
all of the relavent mathematics that they will need to pass. It might
help give you idea of the level of competence of your class in that
regard. If you don't have time to write it yourself, you could probably
ask the math department for some old exams from your university's
remedial math course.

In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems. My approach has been to assign
lots of practice problems, and to make the exam problems somewhat
different than any of the homework. The students need to put in much
more effort than their biology classes, and if they do not, they tend
to do poorly on the exams. I have had some low averages on class exams.

Well, from what I've seen of these types of courses, my guess is that
3/4 of the material you're stuck teaching them is probably things that
the average biologist will never use in their degree programs. Hence
they aren't particularly interested in learning what you're trying to
teach, and are probably hoping you'll just make the course easy enough
for them to get an easy A, and then forget everything you taught them
the moment the exam is finished.

I am finding out the hard way this year that the students resent
this
approach alot. When they do bad, rather than concluding they need to
put more effort into the class, they think I am being unfair to them.
As a result, my teaching evaluations took a major nosedive this year,
and there was even a petition drive protesting my policies. So I was
hoping to get some advice on how I can improve my approach, or if I
just need to expect this kind of response as a result of making the
students think.

Well, first off, I don't think you should in any means dumb down your
class just so that your students will like you more. I do realise that
performance evaluations may be tied to your salary or some other
aspects of your employment, so it is probably not in your best interest
to simply leave things as they are, but I don't think it is fair that
you should be blackmailed into lowering your standards either.
Honestly, unless you make your course stupidly easy, I think you can
probably expect some students to feel that your approach is too
difficult anyway.
Out of curiousity, are you collecting any of the practice problems you
assign to see how well the students are doing? It is possible that they
are having a lot of trouble with the practice problems, in which case,
you may need to spend more time in class on more fundamental concepts,
working through examples, etc.
In terms of your exam problems, you might be able to at least improve
your averages by setting, at least some, of your problems up in a
fashion that helps guide your students through some of the steps. For
instance, in a dynamics problem, instead of writing the problem as
"Given system X, find the acceleration," you could write the problem as
"Given system X, a) Draw force diagrams for each moving part of the
system; b) Write the equations of motion; c) Find the acceleration. The
problem is still the same, and the steps to solve it are still the
same, but you're providing signposts to help them along, and can also
more easily award partial credits if they get some aspects of the
problem correctly.
Hope that helps,
A

Thanks - Leon

.

User: "Gregory L. Hansen"

Title: Re: Teaching physics to biology students 22 Feb 2006 10:13:23 AM
In article <1140607140.393574.221410@g44g2000cwa.googlegroups.com>,
<lgardner@flsouthern.edu> wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.
In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems.

You horrible, horrible person! They're not there to think!
Actually, you're in a tough position when you consider what the typical
biology student taking algebra-based physics expects to get out of the
class-- to get out. They're there because they have to be. It's a
blocker class-- it's one they have to take before they can do stuff they
want to do.
You've been told that it will make the students more competitive and that
they'll appreciate it. But that's not true. They'll resent the physics
classes they were forced to take for a good portion of their careers. If
that's true of engineering students, I expect it's true of biology
students. And I have it from an engineer that engineering students resent
the work, and the threat of failing their dreams, represented by their
physics requirements. And they remember. (I didn't feel like mentioning
to him that it never gets easier for the physics student.)
Maybe there's a little you can do to make it more relevant, like doing
torque problems with muscles and bones, measuring strengths of muscle
fibers, or tying E&M lessons into medical technologies. But there's only
so much you can do with colliding billiard balls.
--
"You're not as dumb as you look. Or sound. Or our best testing
indicates." -- Monty Burns to Homer Simpson
.
User: ""

Title: Re: Teaching physics to biology students 23 Feb 2006 07:11:05 AM
In article <dti2j3$40t$5@rainier.uits.indiana.edu>,
(Gregory L. Hansen) wrote:

In article <1140607140.393574.221410@g44g2000cwa.googlegroups.com>,
<lgardner@flsouthern.edu> wrote:

Hi,

I am currently in my first year of teaching an algebra-based
physics class to students who are primarily biology majors.
For whatever reason, most of the biology professors at our school tend
to "spoon-feed" these students, giving them review sheets that tell
them
exactly what they need to know. So they just memorize the information
on
these sheets. Most of these students do not put much effort into their
biology classes.


In the physics class, I am trying to emphasize the main concepts,
and then the students are expected to apply these concepts to novel
problems.


You horrible, horrible person! They're not there to think!

Actually, you're in a tough position when you consider what the typical
biology student taking algebra-based physics expects to get out of the
class-- to get out. They're there because they have to be. It's a
blocker class-- it's one they have to take before they can do stuff they
want to do.

You've been told that it will make the students more competitive and that
they'll appreciate it. But that's not true. They'll resent the physics
classes they were forced to take for a good portion of their careers. If
that's true of engineering students, I expect it's true of biology
students. And I have it from an engineer that engineering students resent
the work, and the threat of failing their dreams, represented by their
physics requirements. And they remember. (I didn't feel like mentioning
to him that it never gets easier for the physics student.)

Maybe there's a little you can do to make it more relevant, like doing
torque problems with muscles and bones, measuring strengths of muscle
fibers, or tying E&M lessons into medical technologies. But there's only
so much you can do with colliding billiard balls.

Do even more basic things...I watched many medical people
botch setting up feeding tubes because they don't know
basic plumbing common sense. My family has loads of trouble
training new doctors that we have a fever when our temps
register at 98.6. There are times when I don't think they
know what the word _average_ means.
There are tons of things these bio majors need to learn if
they're getting the major for nursing and/or medical
doctor training.
/BAH
.



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