Go to this Desmos graph https://www.desmos.com/calculator/tsfynm2to8 It shows two each of the four conic sections Circles, Ellipses, Hyperbolas, Parabolas Note: A hyperbola has two branches. Only one is shown in the image. A cone actually has two frustums. The image only shows one frustum. http://www.intmath.com/plane-analytic-geometry/conic-sections-summary-interactive.php

# Category Archive: algebra

Mar 23

## Spotting Numbers and Visual Patterns

Here a two great websites that provide lots of great pattern problems. [this website hasn’t been functional lately – too bad! – Spotting Numbers – interactive, does require Java.] Visual Patterns – less interactive, (no Java needed). These patterns can be used with elementary students (if you just ask number questions) through advanced algebra (if …