The sine and the cosine functions having the same graphs Whiteboard exercise Play

The sine formula for the area of a triangle Whiteboard presentation Play

The sine formula for the area of a triangle Class activity Play

The sine of an arbitrary angle Whiteboard exercise Play

The sine of an arbitrary angle Student activity Play

The sine rule Class activity Play

The sine rule Whiteboard presentation Play

The sine rule (the law of sines) Student activity Play

The sine rule and construction of a triangle Animation Play

The sine waveform Animation Play

The sine – reducing angles Student activity Play

The sine – reducing angles Whiteboard exercise Play

The sources of light Animation Play

The spectrum for a greater number of slits Whiteboard exercise Play

The Sun as a form of energy Whiteboard exercise Play

The Sun as a source of energy Student activity Play

The tangent and coordinates of the points Animation Play

The tangent and the secant Student activity Play

The tangent as a coordinate Animation Play

The tangent of an arbitrary angle Student activity Play

The tangent – reducing angles Student activity Play

The timbre Animation Play

The timbre Whiteboard exercise Play

The timbre Student activity Play

The values of the derivative of the sine function Whiteboard exercise Play