The Morse code Whiteboard exercise Play

The mysterious box Animation Play

The natural exponential function Whiteboard presentation Play

The natural exponential function Class activity Play

The natural exponential function Animation Play

The natural logarithmic function Whiteboard presentation Play

The natural logarithmic function Class activity Play

The natural logarithmic function Animation Play

The new price Whiteboard exercise Play

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

The number of roots of a quadratic equation Student activity Play

The number of roots of a quadratic equation Whiteboard exercise 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 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

The number of solutions of a quadratic equation Whiteboard exercise Play

The parabola Whiteboard exercise Play

The parabola Whiteboard exercise Play

The parabola Student activity Play

The perfect square and quadratic equations Animation Play

The perfect square in quadratic equations Animation Play

The points and graphs of the functions Whiteboard exercise Play