Category Archive: algebra

Apr 27

Conic Sections on Desmos

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

Mar 23

Spotting Numbers and Visual Patterns

Here a two great websites that provide lots of great pattern problems. 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 you include questions about functions). Mathematics is often described as …

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