A symmetrical triangle on non-squared paper Student activity Play

A symmetrical triangle on squared paper Whiteboard exercise Play

A symmetrical triangle on squared paper Student activity Play

A triangle symmetrical with respect to a line Student activity Play

A triangle symmetrical with respect to a line Whiteboard exercise Play

Approximating areas of flat irregular figures Student activity Play

Area of figures Whiteboard exercise Play

Areas of figures Whiteboard exercise Play

Areas of figures Student activity Play

Areas of geometric figures Student activity Play

Areas of images of figures under enlargement Whiteboard exercise Play

Areas of images of figures under enlargement Student activity Play

Areas of rectangles – reminder Student activity Play

Areas of similar figures Student activity Play

Areas of the figures Whiteboard exercise Play

Axially symmetric figures Animation Play

Calculating the area of flat irregular figures Whiteboard exercise Play

Characteristic points on the sine function graph Animation Play

Congruency of figures Whiteboard exercise Play

Congruency of triangles and other figures Student activity Play

Congruent figures Simulation Play

Congruent figures Student activity Play

Congruent figures – solving problems Student activity Play

Constructing the graph of the cosine function Animation Play

Constructing the graph of the tangent function Animation Play