Primitive periods of shifted trigonometric functions Whiteboard exercise Play

Producing of the rubbish Animation Play

Properties of trigonometric functions of a general angle (1) Whiteboard presentation Play

Properties of trigonometric functions of a general angle (1) Class activity Play

Properties of trigonometric functions of a general angle (2) Whiteboard presentation Play

Properties of trigonometric functions of a general angle (2) Class activity Play

Proving a trigonometric identity Animation Play

Proving trigonometric identities Animation Play

Proving trigonometric identities Student activity Play

Proving trigonometric identities Whiteboard exercise Play

Proving trigonometric identity using the Pythagorean identity Whiteboard exercise Play

Pythagorean triple Animation Play

Pythagorean triples Student activity Play

Pythagorean triples Whiteboard exercise Play

Qualitative qualities and quantitative qualities Whiteboard exercise Play

Random sampling Animation Play

Random sampling, qualitative qualities Student activity Play

Range of trigonometric functions Student activity Play

Range of trigonometric functions Whiteboard exercise Play

Reactivity of the alkali metals and their position in the periodic table Animation Play

Read and compare Student activity Play

Reading from the graph of the cosine function Student activity Play

Reading properties of the cosine from the graph Whiteboard exercise Play

Reading the information included in the periodic table Whiteboard exercise Play

Recalling trigonometric facts Student activity Play