Construction of a system of linear equations Student activity Play

Encoding numbers Student activity Play

Finding the speeds Whiteboard exercise Play

Finding the speeds Student activity Play

Guessing the numbers Whiteboard exercise Play

How to guess the numbers Animation Play

Numbers encoded by symbols Animation Play

Numbers encoded by symbols Whiteboard exercise Play

Numbers of variables Animation Play

Sandwiches and drinks Animation Play

Solving problems involving simultaneous equations Class activity Play

Solving problems involving simultaneous equations Whiteboard presentation Play

Solving systems of linear equations Student activity Play

Solving systems of linear equations by Gaussian elimination Whiteboard exercise Play

Solving systems of linear equations by substitution Whiteboard exercise Play

Speeds of a boat and a river Animation 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

Systems of more than two linear equations Animation Play

Systems of more than two linear equations Student activity Play

Tickets Student activity Play

Tickets for a family film Whiteboard exercise Play

Zoo tickets Animation Play