Heron's formula for the equilateral triangle Whiteboard exercise Play

Heron's formula for the triangle Student activity Play

Heron's formula for the triangle Whiteboard exercise Play

High-heeled shoes Illustration Play

How do we enlarge the shape? Animation Play

How do we enlarge the shape? Animation Play

How do we scale a shape? Animation Play

How much bigger? Animation Play

How much time is needed? Student activity Play

How temperature affects reaction rates Student activity Play

How to calculate the area below a graph using integrals Illustration Play

How to calculate the volume of prism Animation Play

How to get similar figures Animation Play

How to get similar figures Student activity Play

How to illuminate a room? Slideshow Play

How to multiply a sum by a monomial Student activity Play

How will the area change? Whiteboard exercise Play

How will the area change? Student activity Play

Hydraulic pressure Simulation Play

Hydraulic pressure Student activity Play

Hydrostatic pressure Class activity Play

Hydrostatic pressure Whiteboard presentation Play

Hydrostatic pressure and the density of a liquid Whiteboard exercise Play

Hydrostatic pressure and the density of a liquid Student activity Play

Imperial units of area Animation Play