Encoding numbers Student activity Play

Enlargement on the plane Animation Play

Enlargements in the coordinate system Student activity Play

Enlargements with negative scales Student activity Play

Enlargements with negative scales Whiteboard exercise Play

Enthalpy Whiteboard exercise Play

Enthalpy change does not depend on the reaction pathway Animation Play

Enthalpy of solution. Part 1 Student activity Play

Entropy and spontaneous changes Student activity Play

Entropy change in the surroundings Animation Play

Equal number of votes Animation Play

Equal numbers Whiteboard exercise Play

Equal numbers – wrong steps in proof Whiteboard exercise Play

Equally accurate rounding Student activity Play

Equations with brackets Whiteboard exercise Play

Even and odd nuclei Whiteboard exercise Play

Even and odd nuclei Student activity Play

Even and odd number of negative signs Whiteboard exercise Play

Example as a proof Student activity Play

Example of solving a rational equation Animation Play

Example of using an algebraic expression Whiteboard exercise Play

Examples of square roots Animation Play

Examples of squares Animation Play

Examples of surds Animation Play

Existence of  nth root of a given number Whiteboard exercise Play