Scholars explore triangles with rods of different lengths. Using rods of 2, 4, 6, 8, and 10 cm class members build as many different types of triangles as they can. They also describe properties of these triangles and determine...

Have scholars show what they know with a 20-page assessment aligned to the California State Standards. The test covers concepts such as large and whole numbers, all four mathematical operations, fractions, decimals, geometric figures,...

Building on young mathematicians' prior knowledge of three-sided shapes, this lesson plan series explores the defining characteristics of different types of triangles. Starting with a shared reading of the children's book The Greedy...

Practice problem worksheets are available for students needing to study basic terms relating to triangles and other math concepts.

This site gives a short interactive quiz which allows students to self-assess their understanding of the concept of triangles and angles.

Students are assessed on different types of triangles. Definitions of the triangles are included.