A biconvex lens Animation Play

A central angle – finding the length of the arc Whiteboard exercise Play

A change in speed during the passage to a different medium Whiteboard exercise Play

A circular arc Student activity Play

A converging image, x < f Student activity Play

A converging lens Animation Play

A converging lens Animation Play

A diagonal of a cuboid Animation Play

A diameter Animation Play

A hole in a piece of paper Animation Play

A lens Class activity Play

A lens Whiteboard presentation Play

A linear function – example 2 Student activity Play

A magnifying glass Animation Play

A magnifying glass Student activity Play

A microscope Whiteboard exercise Play

A microscope Animation Play

A microscope Student activity Play

A mirror and a light bulb Student activity Play

A pendulum Whiteboard exercise Play

A pendulum Simulation Play

A pendulum Student activity Play

A photo of the bee Whiteboard exercise Play

A physical pendulum Slideshow Play

A physical pendulum Whiteboard exercise Play