The law of gravitation and Kepler's Third Law Student activity Play

The letters in algebraic expressions, formulas, equations and functions Student activity Play

The letters in algebraic expressions, formulas, equations and functions Whiteboard exercise Play

The line in a coordinate system Animation Play

The mirror equation Student activity Play

The mirror equation Animation Play

The mirror equation Whiteboard exercise Play

The missing numbers Whiteboard exercise Play

The missing numbers in the rectangles Whiteboard exercise Play

The number of car accidents Animation Play

The number of roots of a non-polynomial equation Whiteboard exercise Play

The number of roots of a non-polynomial equation Student activity Play

The number of roots of a non-polynomial equation Student activity Play

The number of roots of a non-polynomial equation Whiteboard exercise Play

The number of roots of a polynomial equation Student activity Play

The number of roots of a polynomial equation Whiteboard exercise Play

The number of roots of a quadratic equation Whiteboard exercise Play

The number of roots of a quadratic equation Student activity Play

The number of roots of a quadratic equation with parameter Whiteboard exercise Play

The number of roots of a quadratic equation with parameter – example Animation Play

The number of roots of a quadratic equation – example Animation Play

The number of solutions Whiteboard exercise Play

The number of solutions of a quadratic equation Student activity Play

The number of solutions of a quadratic equation Simulation Play

The number of solutions of a quadratic equation Student activity Play