Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Inactive » mathchina

Topic: Geometry
Replies: 2   Last Post: Mar 13, 2001 2:15 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Richard Sisley

Posts: 4,189
Registered: 12/6/04
Geometry
Posted: Mar 7, 2001 8:25 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Subject: Question 1
Author: Richard Sisley
Date: 7 March 2001

Dear Professor Zhang,

I have been personally involved in designing a new sequence of courses
for college bound students in the United States. Geometry is present in
each of the four courses. The presence begins in course one on the
first day with an introduction to transformations of the plane.
Transformational geometry provides a line to algebra in many ways. It
can also play a strong role in the study of elementary functions. For
example, the graphs of all quadratic functions can be linked to the
graph of the basic y = x^2 function by simple transformations. As
another example, all exponential functions can be transformed onto each
other with a type of transformation called in our materials a horizontal
scale change.

The transformational linkage of functions can be used for several
purposes, including introducing the Chain Rule for Derivatives in
calculus.

Transformations are very teachable today if the students and teachers
have access to, and make use of technology including graphing
calculators and classroom computer displays using software such as the
Geometer's Sketchpad.

I can provide you with more detailed information if you would like.

Sincerely,

Richard Sisley




Date Subject Author
3/7/01
Read Geometry
Richard Sisley
3/9/01
Read Re: Geometry
xiaodong cheng
3/13/01
Read Re: Geometry
Li

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.