The Pythagorean theorem Student activity Play

The Pythagorean theorem in real life Student activity Play

The radius of the circle inscribed into the right triangle Whiteboard exercise Play

The ratio 1 : 2 Whiteboard exercise Play

The ratio of perimeters Whiteboard exercise Play

The ratio of squares to triangles Whiteboard exercise Play

The ratio of two values Animation Play

The ratio of two values Student activity Play

The ratios of more than two quantities Student activity Play

The rectangle Student activity Play

The rectangle Whiteboard exercise Play

The refractive index Whiteboard exercise Play

The refractive index Student activity Play

The resultant force Animation Play

The resultant force Whiteboard exercise Play

The resultant force Student activity Play

The right prism based on a right-angled triangle Whiteboard exercise Play

The right triangle Animation Play

The SAS property Animation Play

The Second Law of Thermodynamics Animation Play

The Second Law of Thermodynamics Class activity Play

The Second Law of Thermodynamics Whiteboard presentation Play

The Second Law of Thermodynamics for heat engines Simulation Play

The Second Law of Thermodynamics for heat engines Student activity Play

The Second Law of Thermodynamics for heat engines Whiteboard exercise Play