Constructions revisited Simulation Play

Corresponding angles Whiteboard exercise Play

Corresponding sides and angles Student activity Play

Cubes Student activity Play

Cubes Whiteboard exercise Play

Decorative motifs Slideshow Play

Density, compressibility, shape and volume Animation Play

Different questions about the same operation Whiteboard exercise Play

Different questions about the same operation. How many times more? How many times less? Student activity Play

Different questions about the same operation. How much more? How much less? Student activity Play

Different shapes of bacterial cells Slideshow Play

Different vector equations of the same line Animation Play

Diffraction of waves and Huygens' principle Animation Play

Diffraction of waves and Huygens' Principle Student activity Play

Dividing powers of the same index Animation Play

Dividing powers with the same base Animation Play

Dividing powers with the same bases Whiteboard exercise Play

Dividing powers with the same bases Student activity Play

Dividing powers with the same bases: the fractions and the decimals Whiteboard exercise Play

Do liquids have a specific shape? Whiteboard exercise Play

Do liquids have a specific shape? Student activity Play

Doilies in the shape of polygons Whiteboard exercise Play

Drag force Whiteboard exercise Play

Drawing a hexagon inscribed in a circle Student activity Play

Drawing a triangle symmetrical to a point Student activity Play