After that question number 10 was next on the list which served as the perfect segway into our lesson for the day.
The corner points on the unit circle are in gold. These show that the highest and lowest numbers for sine and cosine are 1 and -1.
Expanding the walls of our classroom. This is an interactive learning ecology for students and parents in my Pre-Cal Math 40S class. This ongoing dialogue is as rich as YOU make it. Visit often and post your comments freely.