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

Solubility of salts Student activity Play

Solubility of silver halides Whiteboard exercise Play

Solubility of silver halides in aqueous ammonia solution Animation 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

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

Substitution reactions of alcohols Student activity Play

Subtracting decimals using the written method Student activity Play

Subtraction of two vectors Animation Play

Testing for ions Whiteboard presentation Play

Testing for ions Class activity 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 electrochemical series Whiteboard exercise Play

The electrochemical series Student activity Play

The exact results of the addition Whiteboard exercise Play

The expressions of equal value Whiteboard exercise Play