Rational numbers are dense on the number line Student activity Play

Rational numbers as decimals Animation Play

Rational numbers included between the given numbers Whiteboard exercise Play

Rational numbers on the number line Animation Play

Rational numbers on the number line – proof of existence Animation Play

Rational or irrational? Whiteboard exercise Play

Rationalising the denominator Student activity Play

Reading the formula from the graph Student activity Play

Reading the formula from the graph of a cosine-like function Whiteboard exercise Play

Recurring quotient Student activity Play

Representing a quadratic function in vertex form using the discriminant Student activity Play

Roots of a polynomial Whiteboard exercise Play

Roots of a polynomial Student activity Play

Second-degree curves Student activity Play

Sets of rational numbers and irrational numbers Whiteboard exercise Play

Similar functions – similar graphs Student activity Play

Similar graphs of similar functions Animation Play

Simple quadratic equations Student activity Play

Simple rational functions Whiteboard exercise Play

Simple rational functions Student activity Play

Simplification of rational expressions Student activity Play

Simplification of rational expressions Whiteboard exercise Play

Simplified formula for Pearson's coefficient Student activity Play

Simplified formula for Pearson's coefficient Animation Play

Sketching a parabola Student activity Play