The work that needs to be done to pull a barrel up Whiteboard exercise Play

Theorem – assumptions and claim Student activity Play

Theorem – assumptions and claim Whiteboard exercise Play

Theorems and their assumptions in geometry Student activity Play

Time of flight for projectile motion at an angle Student activity Play

Time of flight for projectile motion at an angle Whiteboard exercise Play

Total internal reflection Simulation Play

Total internal reflection Student activity Play

Transform a triangle into a rectangle Student activity Play

Transform a triangle into a rectangle Simulation Play

Transformation of a triangle Animation Play

Transformations Student activity Play

Triangle Animation Play

Triangles Whiteboard presentation Play

Triangles Class activity Play

Triangles in LOGO Student activity Play

Triangles – part I Student activity Play

Trigonal bipyramidal and octahedral geometry Animation Play

Trigonometric functions Student activity Play

Trigonometric functions Animation Play

Trigonometric functions Whiteboard exercise Play

Trigonometric functions Student activity Play

Trigonometric functions Student activity Play

Trigonometric functions and their signs Animation Play

Trigonometric functions in the coordinate system Student activity Play