A coin and a die Whiteboard exercise Play

A die Whiteboard exercise Play

A different way of calculating the mean Animation Play

A green die and a blue die Whiteboard exercise Play

A red die and a blue die Whiteboard exercise Play

A series of experiments Student activity Play

A series of experiments Whiteboard exercise Play

Adding common fractions and decimals Student activity Play

Adding polynomials – build up the result Whiteboard exercise Play

Addition and subtraction of fractions Student activity Play

All the results of a random experiment Student activity Play

An interesting result Student activity Play

An interesting result Whiteboard exercise Play

Analizing the results of FISH Whiteboard exercise Play

Arithmetic mean in our life Animation Play

Arithmetic mean – the 'true' value of the data Whiteboard exercise Play

Arithmetic mean – the 'true' value of the data Student activity Play

Atomic mass of an element Student activity Play

Atomic mass of an element Animation Play

Average Animation Play

Average and instantaneous speed Student activity Play

Average and instantaneous speed Whiteboard exercise Play

Average concentration of CO in the atmosphere Slideshow Play

Average monthly temperatures Whiteboard exercise Play

Average of the Earth's density Animation Play