September 8, 2006
Volume 11 No. 36
 

In This Issue

Geo-Calc

Seeing Math

TI Contests

 

Geo-Calc

http://www.baldgeeks.com/geocalc.htm

Geo-Calc is Macintosh shareware for calculating the area, perimeter, sides, angles, and other measures of two- and three-dimensional shapes such as ellipses, rectangles, triangles, trapeziums, parallelograms, polygons, prisms, cylinders, cones, pyramids, and spheres.

If entered values do not describe a valid geometrical figure, Geo-Calc highlights the specific problem and suggests solutions. Also available in German and Norwegian.

Areas of the site includes:

  • Introduction movie
  • Installation
  • How to use Geo-Calc
  • Download
  • Registration
  • Languages
  • System Requirements
  • Version History


Seeing Math

http://seeingmath.concord.org/sms_interactives.html

Seeing Math has developed interactive software Java tools to clarify key mathematical ideas in middle and high school mathematics. Each interactive provides a real-time connection between representations of the mathematics (symbolic, graphical, etc.), so that changes in one representation instantly cause changes in the other.

Current interactives include:

  • Qualitative Grapher
  • Piecewise Linear Grapher
  • Linear Transformer
  • Function Analyzer
  • Quadratic Transformer
  • System Solver
  • Plop It!
  • Proportioner

The Concord Consortium freely offers these interactives online, as well as a link to download them all for offline use.


TI Contests

http://www.84silver.com/

Texas Instruments has three different contests:

GraphiTI Design Contest
Create your own GraphiTI design and you could win a $1,000 shopping spree and a TI-Navigator classroom learning system and 30 TI-84 Plus Silver Edition Graphing Calculators for your school.
Deadline: September 29, 2006 at 11:59 p.m. ET
View the Contest Rules:
http://www.84silver.com/contest_rules.php
View the 2005 Winners:
http://www.84silver.com/2005_winners.php
 
Texas Instruments $8,400+ Achieve More Scholarship
Students, parents, and educators can nominate a scholarship winner.
Deadline: December 20, 2006
View the Contest Rules:
http://www.84silver.com/win_scholarship_rules.php
 
Tell Us About Your Teacher Essay Contest
In 300 words or less, tell how your teacher has helped you understand mathematics by using Texas Instruments technology in the classroom. The teacher you're nominating must approve your essay in order for it to be officially entered to win.
Deadline: September 29, 2006
View the Contest Rules:
http://www.84silver.com/win_essay_rules.php

 

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