Corresponding sides and angles Student activity Play

Cubes Whiteboard exercise Play

Cubes Student activity Play

Decorative motifs Slideshow Play

Defining half-planes Whiteboard exercise Play

Defining half-planes – a simple case Student activity Play

Defining points on the plane using vectors Animation Play

Density, compressibility, shape and volume Animation Play

Describing position in a plane Whiteboard exercise Play

Describing regions on the plane using inequalities Whiteboard exercise Play

Different angles Student activity Play

Different shapes of bacterial cells Slideshow Play

Diffraction of waves and Huygens' principle Animation Play

Diffraction of waves and Huygens' Principle Student activity Play

Divide a plane into half-planes Student activity Play

Dividing a plane into half-planes Whiteboard exercise Play

Dividing a plane into half-planes Whiteboard exercise Play

Division of the plane with respect to a function graph Student activity Play

Division of the plane with respect to a function graphs 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

Double cone and a plane Animation Play

Drag force Whiteboard exercise Play

Drawing a hexagon inscribed in a circle Student activity Play