Trigonometric ratios – distance to a star Whiteboard exercise Play

Trigonometric ratios – problems Student activity Play

Trigonometric ratios – tangent Whiteboard exercise Play

Trigonometric ratios – the altitude of the Sun Whiteboard exercise Play

Trigonometric ratios – the angles of the triangle Whiteboard exercise Play

Trigonometric tables Chart Play

Trigonometry of a general angle Whiteboard presentation Play

Trigonometry of a general angle Class activity Play

Use of a calculator Class activity Play

Use of a calculator Whiteboard presentation Play

Using graphs (2) Class activity Play

Using graphs (2) Whiteboard presentation Play

Using new variables to solve trigonometric equations Whiteboard exercise Play

Using the calculator Whiteboard exercise Play

Using the calculator Student activity Play

Using the calculator to solve trigonometric equations Animation Play

Using the difference identity for the tangent Whiteboard exercise Play

Using the double-angle formulas for the tangent to rewrite sine and cosine Student activity Play

Using the reduction formulas Student activity Play

Using the reduction formulas Whiteboard exercise Play

Using trigonometric identities Whiteboard exercise Play

Using trigonometric identities Whiteboard exercise Play