Entropy and the probability of transition of a system to a state of higher entropy Whiteboard exercise Play

Entropy as a measure of the disorder of a system Student activity Play

Entropy as a measure of the disorder of a system Whiteboard exercise Play

Entropy change in the surroundings Animation Play

Enzymes Student activity Play

Enzymes in the digestive system Simulation Play

Equal numbers Whiteboard exercise Play

Equal roundings accurate to 2 d.p. Whiteboard exercise Play

Equally accurate rounding Whiteboard exercise Play

Equally accurate rounding Student activity Play

Equation of a circle in the coordinate system Animation Play

Equation of any circle Simulation Play

Equations of curves Class activity Play

Equations of curves Whiteboard presentation Play

Equivalent quotients Whiteboard exercise Play

Evolution of stars Whiteboard presentation Play

Evolution of stars Class activity Play

Evolutionary development of the nervous system of invertebrates Slideshow Play

Example of solving a system of linear equations by elimination Animation Play

Example of solving a system of linear equations by substitution Animation Play

Examples of decimals Animation Play

Examples of decimals with period 2 Student activity Play

Examples of decimals with period 2 Whiteboard exercise Play

Examples of decimals with period greater than 2 Whiteboard exercise Play

Examples of decimals with period greater than 2 Student activity Play