Quadratic equation with a parameter Animation Play

Quadratic equations and inequalities Whiteboard exercise Play

Quadratic inequalities – using a parameter Animation Play

Reflecting telescope Whiteboard exercise Play

Reflecting telescope Student activity Play

Reflecting telescopes Animation Play

Reflecting telescopes Student activity Play

Refracting telescope Whiteboard exercise Play

Refracting telescope Student activity Play

Shadows Student activity Play

Solution of the equation ax 2 + bx = 0 Student activity Play

Solution of the equation – examples Simulation Play

Solving linear inequalities Student activity Play

Solving linear inequalities with the parameter Whiteboard exercise Play

Solving quadratic inequalities – translation of a graph Animation Play

Spectacles Student activity Play

Spectacles Simulation Play

Spectral analysis Student activity Play

Spectroscope Animation Play

Statements about shadows Whiteboard exercise Play

Structure of the eye Animation Play

Substituting – a complex problem Student activity Play

Systems of inequalities and quadratic equations with a parameter Whiteboard exercise Play

The defects of lenses Student activity Play

The derivative of a linear function Student activity Play