## Friday, October 10, 2014

### Join as at AMTNYS 2014 in Syracuse

Attend my session at the AMTNYS (Association of Math Teachers of New York State) in Syracuse (Nov. 9-11) and you can find out how to make sketches like this, as well as see what I can show you about animations in GeoGebra. For conference details, visit the AMTNYS conference site here.

## Monday, October 6, 2014

I have titled this one "A Heart As Good As Any" and it can be found (and downloaded and edited) here.

Circles with radii 1, 3, and 6, centered at the origin at 3 units below. Two points rotating counterclockwise at the same rotational speed, one clockwise at twice that speed. Those points are connected to form a triangle, and two angle bisectors shown. The trace shows the path of the point of intersection of those medians, the incenter.

Subscribe to:
Posts (Atom)