A linear equation Animation Play

Accurately determining an unknown molarity of acid/base by titration Student activity Play

Accurately determining an unknown molarity of acid/base by titration Whiteboard exercise Play

Buying a ticket Student activity Play

Buying a ticket Whiteboard exercise Play

Calculating unknown distances Animation Play

CDs Whiteboard exercise Play

Composing and solving linear equations Whiteboard presentation Play

Composing and solving linear equations Class activity Play

Determination of the molecular structure of an unknown compound Whiteboard exercise Play

Determination of the molecular structure of an unknown compound Student activity Play

Determination of the molecular structure of an unknown compound Whiteboard exercise Play

Determination of the molecular structure of an unknown compound Whiteboard exercise Play

Determination of the structure of an unknown compound Animation Play

Emmanuel's and Harry's savings Animation Play

Emmanuel's number Animation Play

Emmanuel's, Lena's and Yoko's savings Whiteboard exercise Play

Equality of two ratios: proportion Whiteboard exercise Play

Equality of two ratios: proportion (1) Student activity Play

Equation describing situation on the balance Whiteboard exercise Play

Equation with two unknowns Whiteboard exercise Play

Equations and tables Student activity Play

Equations with brackets Whiteboard exercise Play

Equations with brackets Student activity Play

Equations with brackets Whiteboard exercise Play