Rotation versus the position of equilibrium Whiteboard exercise Play

Skew lines Student activity Play

Soil fertility; fertilization and types of fertilizers Student activity Play

Straight lines and half-planes Whiteboard exercise Play

Straight lines and half-planes Chart Play

Straight lines and half-planes Student activity Play

Symmetries with respect to parallel lines Whiteboard exercise Play

Symmetries with respect to parallel lines Student activity Play

Symmetries with respect to two perpendicular lines Student activity Play

Symmetries with respect to two perpendicular lines Whiteboard exercise Play

The angle between the conductor and the field lines Simulation Play

The angle between the conductor and the field lines Student activity Play

The angle between the conductor and the field lines Animation Play

The angle between the conductor and the field lines Whiteboard exercise Play

The angle between two lines Animation Play

The attraction of iron filings by magnets Animation Play

The core of a transformer Student activity Play

The core of a transformer Illustration Play

The correct perpendicular lines Whiteboard exercise Play

The discovery of X-rays Whiteboard exercise Play

The discovery of X-rays Student activity Play

The distance between the plates Student activity Play

The Earth's field Animation Play

The Earth's magnetic field Whiteboard exercise Play

The Earth's magnetic field Student activity Play