This website will help classify triangles based on the sides. Includes equilateral, isosceles, and scalene.
AAA Math
|
This website goes through the differences between a right, acute and obtuse triangle.
AAA Math
|
A simple interactive website that shows the 6 different classifications of triangles: right, acute, obtuse, equilateral, isosceles, and scalene.
Math.com
|
This website explains the theorem that the sum of two sides of a triangle must be longer than the third side. It also includes a video.
Online Math Learning
|
Estimate the angles between your fingers when you expand your hand.
Figure This! Math Challenges for Families (NCTM)
|
Gives illustrations of the most basic and the most complex polyhedra
Cool Math 4 kids
|
Gives descriptions of tessallations
CoolMath4Kids
|