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

A microscope Animation Play

A microscope Student activity Play

A refracting telescope Animation Play

A refracting telescope Student activity Play

A refracting telescope Whiteboard exercise Play

A spoon in a glass of water Animation Play

Binoculars Student activity Play

Binoculars Whiteboard exercise Play

Binoculars Whiteboard exercise Play

Binoculars Student activity Play

Images in a refracting telescope Animation Play

Microscope Student activity Play

Parameters of the refracting telescopes Whiteboard exercise Play

Prismatic binoculars Animation Play

Reflecting telescope Student activity Play

Reflecting telescopes Student activity Play

Reflecting telescopes Animation Play

Reflecting telescopes Animation Play

Reflecting telescopes Whiteboard exercise Play

Refracting telescope Animation Play

Refracting telescope Student activity Play

Refracting telescope Whiteboard exercise Play

Resolution of optical devices Student activity Play

Resolution of optical devices Animation Play