For Precalc H, I created a series of dynamic Geogebra files, where the teacher or student uses sliders to control the center and the a (and b) values of the conic. The file calculates and graphs the appropriate conic, foci, … Continue reading
Does Hurricane Irene fit a logarithmic spiral? I made a Geogebra applet to see if it does. Enjoy. Parametric equation:
Dynamic Geometry Software I have access to Geometer’s Sketchpad at school; its installed on a bunch of laptops and in a couple of computer labs. ย Geogebra is a similar program but I do not have much experience with it. For … Continue reading