Recalling trigonometric facts Whiteboard exercise Play

Recalling trigonometric facts Student activity Play

Reciprocals of basic trigonometric ratios Student activity Play

Rectangular right prism Animation Play

Reduction formulas Animation Play

Reduction formulas due to periodicity Student activity Play

Reduction formulas due to periodicity Whiteboard exercise Play

Reduction formulas for trigonometric functions Student activity Play

Reduction formulas for trigonometric functions Whiteboard exercise Play

Regular tetrahedrons Student activity Play

Relationship between volumes of similar solids Student activity Play

Rewriting the trigonometric expressions Animation Play

Rewriting trigonometric expressions as rcos(A – α) Whiteboard exercise Play

Rewriting trigonometric expressions as rcos(A – α) Student activity Play

Rewriting trigonometric expressions as rsin(A + α) Whiteboard exercise Play

Rewriting trigonometric expressions as rsin(A + α) Student activity Play

School history competition Whiteboard exercise Play

School maths competition Whiteboard exercise Play

Segment divided into 36 equal parts Whiteboard exercise Play

Shadow Student activity Play

Shadow Whiteboard exercise Play

Sign of values of trigonometric functions Whiteboard exercise Play

Signs of the ratios in the different quadrants Whiteboard exercise Play

Similar prisms and pyramids Student activity Play

Similar pyramids Whiteboard exercise Play