Explore Dynamic Geometry in the New Year!

A GeoGebra design such as this would have a student confront the notions of circle, radius, vector, rotation, translation, and angular speed.

Why can't students learn the vocabulary first and all the fancy math details later?

Dynamic geometry can be an entrance into mathematics.

For more, see www.davemath.com

One circle and one pentagon....

Dynamic geometry can be the door of entry to higher mathematics if it can be the "hook" that captures a students imagination.
This was made in free GeoGebra. Click on tyhe image to get the actual geoGebra file behind it.
For more on dynamic geometry, visit www.davemath.com

Cause and effect

Since we spend a great deal of our lives claiming to causes of the effects we see, I would think it would not be too big a deal to describe the cause of the following path.

If you wish, you can click here to see a small web page about it.

Good luck!



Hub cap math

Blog Error

Starting this morning, whenever I click the "design" link at the top of my main blog page, I get this error.
ERROR: Possible problem with your *.gwt.xml module file.
The compile time user.agent value (ie9) does not match the runtime
user.agent value (ie10). Expect more errors.

No matter what I have tried, the error persists. Does anyone have a clue about this?

Golden Arches: Parabolas or Not?

Click on the leftmost toolbar icon, then drag the 5 points to either the inside or outside edge of one of the arches. GeoGebra will show you what it gets. (The other tools are, in order,  for moving everything, zoom out, zoom in, and selecting a single item.) EXPERIMENT!!!
Note: You mat have to click in the space below to activate the graphic.

Omega Unlimited: The Golden Arches ® Exposed!

This is a link to an older post by someone else. Tomorrow I will post a page that will let you test this theory for yourself. Omega Unlimited: The Golden Arches ® Exposed!