How does it work? Animation Play

How much does an apple weight? Whiteboard exercise Play

How much does it cost? Student activity Play

How much does it cost? Whiteboard exercise Play

How much does it weigh? Student activity Play

How much does it weigh? Simulation Play

How much does it weigh? How much does it cost? Student activity Play

How much does the notebook cost? Whiteboard exercise Play

How much does the stamp cost? Simulation Play

How much does the ticket cost? Whiteboard exercise Play

Inequalities Class activity Play

Inequalities Whiteboard presentation Play

Inequalities (1) Class activity Play

Inequalities (1) Whiteboard presentation Play

Inequalities (2) Whiteboard presentation Play

Inequalities (2) Class activity Play

Inequalities and regions on the plane Animation Play

Inequalities for quadratic function in the vertex form Whiteboard exercise Play

Inequalities for quadratic function in the vertex form Whiteboard exercise Play

Inequalities for quadratic functions in the factor form Whiteboard exercise Play

Inequalities for quadratic functions in the factor form Student activity Play

Inequalities for quadratic functions in the vertex form Student activity Play

Inequalities in a coordinate system Whiteboard exercise Play

Inequalities in a coordinate system Student activity Play

Inequalities in two variables Student activity Play