Math Forum > Annie's GSP Activities > Types of Triangles

Types of Triangles

This activity deals with scalene, isosceles, equilateral, and right triangles. Students use a GSP sketch or an interactive web page to drag and manipulate four triangles, one of each type, and use the activity handout(s) to guide their exploration.

There are two different written activities, one for the elementary level, and one for the middle/high school level (both are included in the Word and PDF documents). There are three interactive pages in both the sketch and the java applet. Only the first page is referred to by the introductory activity, while the advanced activity uses all three. No experience with Sketchpad is needed in order to use this activity.

Sketchpad

Activity as Word document
Activity as PDF file
Activity as HTML (intro)
Activity as HTML (advanced)

Download the sketch

Sketch Explorer [iPad]

Recording Sheet [pdf]

Download the Sketch

Java Applet

Activity as Word document
Activity as PDF file
Activity as HTML (intro)
Activity as HTML (advanced)

Go to the applet

 

 

Last Revised March 2005