A golden section Animation Play

Adding or subtracting surds Whiteboard exercise Play

Adding or subtracting surds Student activity Play

Approximating surds Student activity Play

Approximating surds Animation Play

Checking if the number is a surd Animation Play

Compose a proof Student activity Play

Demonstration or proof? Student activity Play

Discriminant of the equation ax 2 + bx + c = 0 Student activity Play

Distance between points in 3-dimensional space Whiteboard exercise Play

Distance formula in 3-dimensional space Student activity Play

Dividing surds Whiteboard exercise Play

Dividing surds Student activity Play

Dividing surds Whiteboard exercise Play

Example of proof Animation Play

Examples of simplifying rational expressions Animation Play

Examples of simplifying surds Animation Play

Examples of surds Animation Play

Examples of surds Animation Play

Expressions and their simplifications Whiteboard exercise Play

Finding a simpler way to write the expression Student activity Play

Finding a simpler way to write the expression Whiteboard exercise Play

Finding surds Student activity Play

Finding surds Whiteboard exercise Play

Finding the exact values of trigonometric ratios for selected angles Student activity Play