Sequences formed by adding a fixed number – part 1 Student activity Play

Sequences formed by adding a fixed number – part 2 Student activity Play

Sequences formed by adding a fixed number – part 3 Student activity Play

Shaping addition polymers Animation Play

Simplify the expression Student activity Play

Simplifying expressions Animation Play

Simplifying the addition of roots Animation Play

Simplifying the expressions with similar terms Whiteboard exercise Play

Something to eat and drink in the Internet Café Student activity Play

Something to eat and drink in the Internet Café Whiteboard exercise Play

Something to eat and drink in the Internet Café Whiteboard exercise Play

Subtracting decimals using the written method Student activity Play

Subtraction of two vectors Animation Play

Tests for alcohols Student activity Play

The addition of hydrogen to alkenes Animation Play

The correct position of the signs Whiteboard exercise Play

The correct sums Whiteboard exercise Play

The cost of a 3-day mountain trip Whiteboard exercise Play

The exact results of the addition Whiteboard exercise Play

The expressions of equal value Whiteboard exercise Play

The hydrogenation of alkenes or alkynes Animation Play

The inconsistencies in Kekulé's theory of the structure of benzene Whiteboard exercise Play

The inconsistencies in Kekulé's theory of the structure of benzene Student activity Play

The length of the road Whiteboard exercise Play

The maze Game Play