The Mountain of Dreams Animation Play

The octet rule Animation Play

The perimeters of the triangles – trigonometric ratios for selected angles Whiteboard exercise Play

The perimeters of the triangles – trigonometric ratios for selected angles Whiteboard exercise Play

The period of the trigonometric functions Animation Play

The periodic table Student activity Play

The periodic table Class activity Play

The periodic table Whiteboard presentation Play

The periodic table of the elements Whiteboard presentation Play

The periodic table of the elements Class activity Play

The price of a notebook Simulation Play

The range Student activity Play

The sales of sports socks Whiteboard exercise Play

The same values of the tangent function Whiteboard exercise Play

The same values of trigonometric functions Whiteboard exercise Play

The shape of the graph of the tangent function Whiteboard exercise Play

The sides of the triangles – trigonometric ratios for selected angles Whiteboard exercise Play

The signs of the trigonometric functions Student activity Play

The signs of trigonometric functions Whiteboard exercise Play

The signs of trigonometric functions – clockwise turn Whiteboard exercise Play

The sine – reducing angles Whiteboard exercise Play

The sine – reducing angles Student activity Play

The stability of electron configuration Animation Play

The structure of the periodic table Whiteboard exercise Play

The structure of the periodic table Illustration Play