Mr. David A. Peterson
Philosophy of Education
Standards for Professional Educators
Other Selected Musings
Pre-Calculus 11 Blocks C & D
OLD Ch 2: Trigonometry
EDUC 472 / EDUC 372
Here you will find some links to some stuff.
GeoGebra Quadratics Tool
If you have a tablet you can alternatively scan it in with this QR code:
"It is the mark of an educated mind to be able to entertain a thought without accepting it."