A black box Student activity Play

A coin and a die Whiteboard exercise Play

A coin at the tip of a needle Animation Play

A coin-tossing simulator Simulation Play

A domino and a coin Animation Play

A million nephrons in one kidney Student activity Play

A series of experiments Student activity Play

Alcohols containing one hydroxyl group Animation Play

All the results of a random experiment Student activity Play

An angle congruent to a given one Student activity Play

An angle congruent to a given one Whiteboard exercise Play

Antibiotics – the other side of the coin Animation Play

Applications of geometric sequences Student activity Play

Area of one triangle Whiteboard exercise Play

At least one boy in a family Whiteboard exercise Play

Basic properties of probability Student activity Play

Biocenosis - a community of all organisms belonging to one ecosystem Whiteboard exercise Play

Biocenosis – a community of all organisms belonging to one ecosystem Student activity Play

Calculating the cost of one kilogram of the fruit Whiteboard exercise Play

Can it happen? Student activity Play

Certain event, impossible event, opposite event Student activity Play

Certain, impossible or opposite Animation Play

Class one lever Animation Play

Class one lever Simulation Play

Class one lever Whiteboard exercise Play