A point of tangency Whiteboard exercise Play

A point, a radius and an angle Animation Play

A snail's trip Whiteboard exercise Play

A source of voltage Student activity Play

A source of voltage Animation Play

A source of voltage Whiteboard exercise Play

A square in a coordinate system Whiteboard exercise Play

A symmetrical triangle on squared paper Student activity Play

A triangle in a coordinate system Whiteboard exercise Play

Aberration Animation Play

Acceleration of a charge in a homogeneous electric field Animation Play

Accurately determining an unknown molarity of acid/base by titration Student activity Play

Accurately determining an unknown molarity of acid/base by titration Whiteboard exercise Play

Acid-base titration Whiteboard presentation Play

Acid-base titration Class activity Play

Acidity reaction (hydrolysis) of metal ions Student activity Play

Aldehydes and ketones Whiteboard presentation Play

Aldehydes and ketones Class activity Play

Algebraic solutions Student activity Play

Alkanes and cycloalkanes Whiteboard presentation Play

Alkanes and cycloalkanes Class activity Play

Allotropes of carbon Animation Play

Aluminium chloride Animation Play

Amino acids Whiteboard presentation Play

Amino acids Class activity Play