A closer look at the sine Whiteboard exercise Play

A closer look at the trigonometric ratios Student activity Play

A perpendicular through a point off the line ws Play

A perpendicular through a point off the line 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 Class activity Play

An application of the vocabulary of probability Whiteboard presentation Play

Animal and plant movements Slideshow Play

Antiparticles Animation Play

Antiparticles – matter and antimatter Student activity Play

Atherosclerotic lesions Slideshow Play

Atherosclerotic lesions Slideshow Play

Balloon seller Animation Play

Certain event, impossible event, opposite event Student activity Play

Certain, impossible or opposite Animation Play

Diseases caused by atherosclerosis and arterial hypertension Student activity Play

Diseases caused by atherosclerosis and arterial hypertension Student activity 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 length of the triangle legs Animation Play