Concept Studio.
An interactive virtual lab for mathematics and science.
Six complete demonstrations are free to try. Explore the rest in the catalogue.
See plansExplore the demonstrations.
10 of 11
A tangent's gradient is the limit of secant gradients
How can a curve have a gradient at a single point?
Fractions on a number lineSides and angles give a shape its namesTen ones make one tenThe two hands of a clock move togetherA picture hides some faces, edges and verticesTwo dice and the long runVolume of a prism, layer by layerVolume of pyramids and conesA reciprocal changes values and preserves exclusionsA tangent's gradient is the limit of secant gradientsTwo equations, one shared coordinate plane