The equilibrium constant expression for a heterogeneous reaction Animation Play

The equilibrium constant expression of the homogeneous reaction Animation Play

The expression for the nth term of the sequence Student activity Play

The expression for the nth term Class activity Play

The expression for the nth term Whiteboard presentation Play

The expression for the  nth term of the sequence Whiteboard exercise Play

The expressions of equal value Whiteboard exercise Play

The genetic code; genotype expression and phenotype formation Animation Play

The intensity of light Animation Play

The letters in algebraic expressions, formulas, equations and functions Whiteboard exercise Play

The letters in algebraic expressions, formulas, equations and functions Student activity Play

The missing numbers in the expressions Whiteboard exercise Play

The missing results Whiteboard exercise Play

The monomial raised to a power Student activity Play

The nth term expression Whiteboard exercise Play

The pairs of expressions of a binomial sum Whiteboard exercise Play

The power in an arithmetic expression Whiteboard exercise Play

The power of a product Whiteboard exercise Play

The similar terms marked wrong Whiteboard exercise Play

The simpler way to write algebraic expressions Whiteboard exercise Play

The tangent – reducing angles Student activity Play

The value of an algebraic expression Whiteboard exercise Play

The value of an algebraic expression Student activity Play

The value of an algebraic fraction Animation Play

The value of an expression Whiteboard exercise Play