**Date:** Wed, 23 Aug 2000 13:11:27 -0500

**Author:** Gary Karshner

**Subject:** Re: Small angle demo

**Post:**

Gerald,

I will date myself by stating that I first learned about the small

angle

approximation by observing it on a slide rule. A more modern approach is to get

the student to set their calculators to calculate sines using radians and ask

them to compare the results from finding the sine of 1, .1, .01,.001 radians.

Then ask them to determine the size of the corresponding angles in degrees. You

could ave the students do the calculations and write the results on the black

board.

Just a though.

Gary

At 08:58 AM 8/23/00 -0400, you wrote:

>

> Tappers,

>

> I am back from vacation and I am looking for a demo for an introductory math

> topic, the small angle approximation. Please respond if you HAVE a demo that

> you perform to show the small angle approximation.

>

> If you do not have a demo for this then do not feed me untried ideas. I am

> looking for someone with experience on this demo topic. Jerry

> Gerald Zani

> Manager of demonstrations

> Department of Physics

> Brown University

> Box 1843

> Providence, RI 02912

> (401)863-3964

> Gerald_Zani@brown.edu

>

> http://www.physics.brown.edu/users/staff/zani/index.html

> http://www.physics.brown.edu/Studies/Demo/

>

> Do a little more of that work which you have confessed to be good,

> which you feel that society and your most Just Judge rightly demand of you.

> Cultivate the tree which you have found to bear fruit in your soil.

> If you have any experiments you would like to try, try them.

> Now's your chance.

> Henry David Thoreau, Journal entry, 1850.

>

>

>

>

>

Gary Karshner

St. Mary's University

San Antonio, Texas

KARSHNER@STMARYTX.EDU