Classification of triangles by sides Animation Play

Coefficients on equal polynomials Whiteboard exercise Play

Collecting like terms and finding equal polynomials Whiteboard exercise Play

Comparing quantities Student activity Play

Comparing quantities Whiteboard exercise Play

Congruence of triangles Whiteboard presentation Play

Congruence of triangles Class activity Play

Congruency of the triangles Whiteboard exercise Play

Congruency of triangles Whiteboard exercise Play

Congruency of triangles and other figures Student activity Play

Congruent triangles Simulation Play

Congruent triangles Animation Play

Congruent triangles Animation Play

Congruent triangles Student activity Play

Congruent triangles Animation Play

Congruent triangles Student activity Play

Congruent triangles Whiteboard exercise Play

Congruent triangles Student activity Play

Congruent triangles – solving problems Student activity Play

Construction of triangles Animation Play

Corresponding segments and angles – reflection Animation Play

Counting votes Student activity Play

Creating symmetrical triangles Whiteboard exercise Play

Dividing an equilateral triangle into nine congruent triangles Whiteboard exercise Play

Dividing an n-sided polygon into triangles Animation Play