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

A magnifying glass Student activity Play

A magnifying glass Simulation Play

A magnifying glass Whiteboard exercise Play

A photographic camera Simulation Play

A photographic camera Student activity Play

A spoon in a glass of water Animation Play

An image formed by a magnifying glass Animation Play

An image through a camera Animation Play

Binoculars Whiteboard exercise Play

Binoculars Student activity Play

Images in a refracting telescope Animation Play

Microscope Student activity Play

Optical instruments Class activity Play

Optical instruments Whiteboard presentation Play

Reflecting telescope Whiteboard exercise Play

Reflecting telescope Student activity Play

Reflecting telescopes Animation Play

Refracting telescope Whiteboard exercise Play

Refracting telescope Animation Play

Refracting telescope Student activity Play

The parameters of binoculars Slideshow Play

Visual angle Student activity Play

Visual angle Simulation Play

Visual angle Whiteboard exercise Play