Measuring distances on maps Whiteboard exercise Play

Miscellaneous problems Student activity Play

Obtuse angles Student activity Play

Obtuse angles Whiteboard exercise Play

Parallax method Animation Play

pH and the concentration of hydrogen ions Animation Play

pH as the universal acidity measure Class activity Play

pH as the universal acidity measure Whiteboard presentation Play

Properties of matter Class activity Play

Properties of matter Whiteboard presentation Play

Properties to be expected from a probability measure Student activity Play

Properties to be expected from a probability measure Whiteboard exercise Play

Properties to be expected from a probability measure Whiteboard exercise Play

Pythagorean triples Student activity Play

Radian measure of angles Animation Play

Radiation Animation Play

Radiation Animation Play

Reading the rounded value of the square root Animation Play

Rounded measures Animation Play

Supplementary, corresponding and alternate angles Whiteboard exercise Play

Supplementary, vertical, corresponding and alternate angles Student activity Play

The angles of isosceles triangles Student activity Play

The angles that are multiples of 45° Animation Play

The angles that are multiples of 60° Animation Play

The central angle of a regular polygon Student activity Play