The possible lengths of the edges of the cuboid Whiteboard exercise Play

The power of a lens Animation Play

The power of lenses Whiteboard exercise Play

The power of lenses Student activity Play

The price of fabric Whiteboard exercise Play

The prism Whiteboard exercise Play

The prism Student activity Play

The pyramid Whiteboard exercise Play

The pyramid Student activity Play

The Pythagorean theorem in real life Whiteboard exercise Play

The Pythagorean theorem in real life Student activity Play

The ratios of more than two quantities Student activity Play

The resistance of a wire Animation Play

The resistance of a wire and its dimensions Student activity Play

The resistance of a wire and its dimensions Simulation Play

The rhombus Student activity Play

The rhombus and the circle Student activity Play

The rhombus and the circle Whiteboard exercise Play

The second tangent theorem – equality in length Student activity Play

The second tangent theorem – equality in length Whiteboard exercise Play

The sides of isosceles triangles Student activity Play

The sides of the triangles – trigonometric ratios for selected angles Whiteboard exercise Play

The size of the image and the focal length of a mirror Simulation Play

The size of the image and the focal length of a mirror Student activity Play

The size of the image and the focal length of a mirror Whiteboard exercise Play