Tuesday, February 06, 2007
2/6 Pre Algebra - Slope Formula
Today students were introduced to the slope of a line, its definition and the slope formula. Above you can see a video of someone using the slope formula on two sets of ordered pairs. Students took notes on the board first, then we did some example problems together in class. After we were finished with the practice, the students worked on the graded assignment.
Homework:
p. 407-408 #'s 8-10, 18-33
2/6 Applied Geometry - Law of Sines & Cosines
Above you can view a screencast of a problem solved using the Law Of Sines. We will be solving problems like this in class and on our homework today. You can view the Law of Sines here. We will also be working with the Law Of Cosines as well, which can be explained here. You will most likely have to use your notes later on to solve these, the Law Of Cosines is particularly long. Make sure they get copied into your notes along with the example problems on the board. In class today, after the students take notes, we will do some examples of solving for pieces of triangles using both the Law Of Sines and the Law Of Cosines.
Homework:
page 555-556 #'s 2-8 even, 10-15, 26-37
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