Substituting into the formulas Whiteboard presentation Play

Substituting into the formulas Class activity Play

Terms that depend on previous terms in a sequence Student activity Play

The nth triangular number Animation Play

The area of the whole rectangle – product of two sums Whiteboard exercise Play

The content of a problem as an algebraic expression Student activity Play

The content of a problem as an algebraic expression Animation Play

The content of a sentence as an algebraic expression Animation Play

The content of a sentence as an algebraic expression Student activity Play

The content of a sentence as an algebraic expression Animation Play

The correct position of the signs Whiteboard exercise Play

The course of translation Student activity Play

The difference between a program and its realization Student activity Play

The difference between a program and its realization Whiteboard exercise Play

The difference of squares Animation Play

The effects of steroid hormones on gene expression Whiteboard exercise Play

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 Whiteboard presentation Play

The expression for the nth term Class activity 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