System of inequalities in two variables Student activity Play

The area of the whole rectangle – product of two sums Whiteboard exercise Play

The cumulative frequency polygon Student activity Play

The decimal representation and the negative exponent Whiteboard exercise Play

The graphical solution of an inequality Animation Play

The sale of clothes Simulation Play

The sale of hair dye Simulation Play

The shape designed by Lena Whiteboard exercise Play

Transformation of algebraic equations Whiteboard presentation Play

Transformation of algebraic equations Class activity 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

Weight Class activity Play

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

Wrong steps in reasoning Student activity Play