Shortened class period and quiz day. The quiz that I’m using is the 8.1, 8.2 quiz from the assessment materials.
After going over the homework I had this table up on the board:
And with them I filled out the table while showing the translations of the absolute value and the parabola on Sketchpad. The function with the square around x isn’t a real function, but I wanted to point out that it could represent any function at all, so I drew a weird function on the board and explained that it would just be translated like the other ones from the rule that we used.
30 April 2008 at 10:58
Very nice to include the (x,y) rule again, and to compare/contrast it to the function rules, even though the students find it confusing.
02 May 2008 at 11:08
When we were reviewing for the quiz, I always had the students tell me the coordinates of the vertex before writing the equation. Looking at the coordinates of the vertex, and then writing down the opposite in the question was probably acceptable because we’ve been doing this all week. Trying to hold the information in our heads got us too confused. I didn’t do this consistently from the beginning, but today it really seemed to help.