Solving problems – the angles Whiteboard exercise Play

Solving word problems Class activity Play

Speed – a more difficult problem Student activity Play

Stating a problem and collecting data Student activity Play

Stating a problem and collecting data Whiteboard exercise Play

Statistical problem specification Student activity Play

Statistical problem specification Whiteboard exercise Play

Substituting – a complex problem Student activity Play

Substituting – a complex problem Whiteboard exercise Play

Subtracting fractions – a practical problem Whiteboard exercise Play

Subtracting fractions – a practical problem Whiteboard exercise Play

System of equations describing big and small ice-creams problem Whiteboard exercise Play

System of equations describing drinks and ice-creams problem Whiteboard exercise Play

The apples problem Animation Play

The bird diversity problem Student activity Play

The bird diversity problem Whiteboard exercise Play

The content of a problem as an algebraic expression Animation Play

The content of a problem as an algebraic expression Student activity Play

The fence problem Student activity Play

The fence problem Whiteboard exercise Play

The investment – a more difficult problem Student activity Play

The problem of de Méré Animation Play

The problem of drug addiction Student activity Play

The problem of drug addiction Whiteboard exercise Play

The scatter plot for bird density Student activity Play