Distance formula in 3-dimensional space Student activity Play

Distance from a point to a line Simulation Play

Distance from a point to a line Student activity Play

Divide a plane into half-planes Student activity Play

Dividing a plane into half-planes Whiteboard exercise Play

Dividing a plane into half-planes Whiteboard exercise Play

Division of mutations Illustration Play

Double cone and a plane Animation Play

Drawing a graph of a linear function Animation Play

Drawing a graph of the function Animation Play

Drawing a triangle symmetrical to a point Student activity Play

Drawing a triangle symmetrical to a point Whiteboard exercise Play

Drawing an enlargement of the shape Whiteboard exercise Play

Drawing the graph of the function Whiteboard exercise Play

Drawing the tangent Animation Play

Effects of point mutations Student activity Play

Electric field of a point charge Simulation Play

Electric field of a point charge Whiteboard exercise Play

Electric field of a point charge Student activity Play

Electric field of a system of point charges Whiteboard exercise Play

Electric field of a system of point charges Student activity Play

Electric field of a system of point charges Slideshow Play

Elements Whiteboard presentation Play

Elements Class activity Play

Emptying a bathtub Whiteboard exercise Play