A big painting Whiteboard exercise Play

A diagonal of a cuboid Animation Play

A line parallel to a given line Student activity Play

A line parallel to a given line Whiteboard exercise Play

A perpendicular through a point off the line Student activity Play

A perpendicular through a point off the line ws Play

A perpendicular through a point on the line Student activity Play

A perpendicular through a point on the line ws Play

A segment square root of 2 units long and others Animation Play

A shortcut Animation Play

Addition and subtraction of square roots Whiteboard exercise Play

Angle bisector Animation Play

Angle bisector Student activity Play

Application of the Pythagorean theorem in 2-D Whiteboard presentation Play

Application of the Pythagorean theorem in 2-D Class activity Play

Application of the Pythagorean theorem in 3-D Whiteboard presentation Play

Application of the Pythagorean theorem in 3-D Class activity Play

Applying the distance formula in 3-dimensional space Animation Play

Applying the Pythagorean theorem Student activity Play

Applying the Pythagorean theorem Whiteboard exercise Play

Applying the Pythagorean theorem Animation Play

Building a square from two squares Animation Play

Cartesian coordinate system of 3-dimensional space Whiteboard exercise Play

Centroid of a triangle Animation Play

Checking the triangle Animation Play