MathArt – Pattern of Arcs
Here’s a piece of math art based on Jerzy Mil’s work. I’m still deciphering his code that makes this art. One of the nice features of geogebratube is that you can download GeoGebra apps and look at...
View ArticleSpirograph-Epitrochoid Earth and Moon
An epitrochoid is the path traced by a point on a circle (M) that travels on the outside of another circle (E). This can be used to model the path of the Moon (M) in orbit around the Earth (E). There...
View ArticlePolygons and Diagonals
Number of diagonals in a polygon: If n = number of vertex points, then D = number of diagonals = n(n-3)/2. Slider n controls the number as well as the color. In the Advanced tab, Red = n / 36, Green =...
View ArticleSpiral Crosses – a Rotation and Dilation Exercise
This is a great exercise for Common Core Geometry instruction in the area of transformations. HINT: highlight a slider’s button, then use your cursor keys for fine adjustment; play around with the...
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