Double-angle formula for the tangent Student activity Play

Double-angle formula for the tangent Whiteboard exercise Play

Double-angle formulas Class activity Play

Double-angle formulas Whiteboard presentation Play

Drawing the tangent Animation Play

Equal segments Animation Play

Equality of tangent and cotangent Whiteboard exercise Play

Equations involving the tangent function Student activity Play

Equations involving the tangent function Whiteboard exercise Play

Equations with tan(ax) Whiteboard exercise Play

Equations with  tan(ax) Student activity Play

Estimating the gradient Student activity Play

Estimating the gradient of a curve Whiteboard exercise Play

Exact values of trigonometric ratios Animation Play

Exact values of trigonometric ratios for selected angles Animation Play

Exact values of trigonometric ratios for selected angles Student activity Play

Finding angle Whiteboard exercise Play

Finding double-angle formula for the tangent Animation Play

Finding equal expressions Whiteboard exercise Play

Finding gradients, tangents and normals Class activity Play

Finding gradients, tangents and normals Whiteboard presentation Play

Finding intersection points Whiteboard exercise Play

Finding intersection points of two circles Student activity Play

Finding intersection points of two circles Whiteboard exercise Play

Finding tangent and normal Whiteboard exercise Play