Representation of the data Animation Play

Representation of the data Student activity Play

Representations Whiteboard presentation Play

Representations Class activity Play

Stratified sampling Student activity Play

Sums of powers of 2 Student activity Play

Sums of square roots of integers Student activity Play

The cumulative frequency polygon Student activity Play

The decimal representation and the negative exponent Whiteboard exercise Play

The shape designed by Lena Whiteboard exercise Play

Transformation of graphs Whiteboard presentation Play

Transformation of graphs Class activity Play

Two billiard balls collisions and the velocity vectors Whiteboard exercise Play

Velocity as a vector Student activity Play

Write as a decimal or as a power of 10 Student activity Play

Wrong steps in reasoning Student activity Play