A closer look at the sine Whiteboard exercise Play

A closer look at the trigonometric ratios Student activity Play

A right-angled triangle Student activity Play

A right-angled triangle – opposite side Whiteboard exercise Play

AA property of similar triangles Student activity Play

An application of the vocabulary of probability Whiteboard presentation Play

An application of the vocabulary of probability Class activity Play

Antiparticles Animation Play

Antiparticles – matter and antimatter Student activity Play

Balloon seller Animation Play

Certain event, impossible event, opposite event Student activity Play

Certain, impossible or opposite Animation Play

Drawing opposite vectors Whiteboard exercise Play

Exterior angle of a triangle Whiteboard exercise Play

Exterior angle of a triangle – exercises Student activity Play

Exterior angle of a triangle – observation and proof Student activity Play

Finding angles Whiteboard exercise Play

Finding the opposite event Whiteboard exercise Play

Forces of action and reaction act in opposite directions Student activity Play

Forces of action and reaction act in opposite directions Whiteboard exercise Play

How to know what transformation was used Animation Play

Image of a figure (reflection in the x-axis) Animation Play

Image of a figure (reflection in the y-axis) Animation Play

Interactions between ions of the opposite charge Animation Play

Interesting information Animation Play