Demonstration of the formula for the area of a triangle Whiteboard exercise Play

Deriving function from equations Animation Play

Describing class intervals Student activity Play

Describing class intervals – alto singers Whiteboard exercise Play

Diet for your heart Student activity Play

Discontinuous and continuous variation Student activity Play

Discontinuous variation Student activity Play

Discontinuous variation Student activity Play

Disorders related to abnormalities in the number of sex chromosomes Slideshow Play

Distance formula in 3-dimensional space Student activity Play

Distribution of height among students Whiteboard exercise Play

Drawing a parallelogram Whiteboard exercise Play

Drawing a parallelogram and calculating its area Whiteboard exercise Play

Each one of us is different Student activity Play

Egyptian pyramids Animation Play

Elements of a pyramid Student activity Play

Example of assignment Student activity Play

Examples of functions represented in words Student activity Play

Filling a vessel Animation Play

Filling vessels Student activity Play

Filling vessels Simulation Play

Finding areas Whiteboard exercise Play

Finding areas Student activity Play

Finding height Whiteboard exercise Play

Finding heights Student activity Play