Symmetry with respect to a point Animation Play

The areas of similar figures Animation Play

The figures symmetric with respect to the marked point Whiteboard exercise Play

The figures under enlargements Whiteboard exercise Play

The function y = ln|x| Animation Play

The functions  y = x 2  and  y = –x 2 Student activity Play

The graph of the function y = ln |x| Student activity Play

The intersection point of the two figures Animation Play

The moon-shaped figures Animation Play

The pairs of congruent figures Simulation Play

The reasons for using circles Animation Play

The simplest quadratic functions Animation Play

The volumes of similar figures Animation Play

The volumes of similar figures – property of similarity Whiteboard exercise Play

Type of skewness Student activity Play

Type of skewness Whiteboard exercise Play

Using properties of a parabola Whiteboard exercise Play

Volume of figures Whiteboard exercise Play

Volumes of images of figures under enlargement Whiteboard exercise Play

Volumes of images of figures under enlargement Student activity Play

Volumes of similar figures Student activity Play