Triangle Whiteboard exercise Play

Triangle Student activity Play

Triangle and circle Animation Play

Triangle and its area Simulation Play

Triangle and its area Simulation Play

Triangle and its area Simulation Play

Triangle and its area – activity Student activity Play

Triangles Student activity Play

Triangles Whiteboard exercise Play

Triangles – part III Student activity Play

Trigonometric ratios – problems Student activity Play

TV screens Whiteboard exercise Play

Two circles Simulation Play

Two cuboids Whiteboard exercise Play

Units of length, volume and mass Whiteboard exercise Play

Units of length, volume and mass Student activity Play

Using a trick in finding roots Student activity Play

Using a trick in finding roots Whiteboard exercise Play

Using measuring instruments to approximate constructions Student activity Play

Using ruler and protractor to approximate constructions Simulation Play

Using ruler and set-square to approximate constructions Simulation Play

Using scales and plans Student activity Play

Using scales and plans Whiteboard exercise Play

Using the formula for the space diagonal of a cube Whiteboard exercise Play

Using the Pythagorean theorem in 3-dimensional space Student activity Play