More on transformations

Today, Mr. Max talked about our course as a whole and the test that we are taking on Wednesday. He said that we will not be allowed to use calculators on the test since that would be good practice for our exam. (Geez, everything is about the exam now and not about math! ;-) )

Basically, it boils down to this: this is the kind of course where we have learn to learn. That is, we cannot sit around and expect Mr. Max to fill our head with the answers. We have to take the initiative to work and learn on our own and ask for help when necessary.

Now, onto the government website: there were exams on there as well as the solutions to the questions. One thing that was emphasized was the word “exemplar.” In this case, exemplar means something that is typical of a student. And also the kind of mark they would get for a answer that was only partially correct.

Here is a link to that website:

http://www.edu.gov.mb.ca/k12/assess/archives/index.html

Now, onto the math. (Finally.) We did some more stuff on transformations dealing with compressions and stretches.

I wish I had something to say about these slides, but I don't (Sorry Mr. Max). So I think that you can interpret these yourself:

Also, here is a video of the lecture that Mr. Max gave us:

Here is what Mr. Max assigned for us to do for homework: exercise 8, 1 to 17 all.

Have a great and wonderful day! Also, study hard for that test! I myself will need it the most. ;-)

Friday, February 13, 2009

(This should have been up a week ago, but stuff happens. . . . )

Today, there was a basketball tournament, and some of the class stayed behind while others went to see the game. There wasn’t any new material introduced today, so that saves me the headache of having to put up more material. ;-)

Today (one week ago) Mr. Max showed us a really cool program called graphimatica (which is probably a spinoff of the famous “Mathematica”). We also learned about angles of rotation and the two types of angels: supplementary angles (angles add up to 180 degrees) and complimentary angles (angles that add up to 90 degrees), and arcs.























We can take make graphimatica export a clean image showing us our graphed lines:

Now, on to the angles of rotation. When the terminal arm rotates clockwise, it is negative, and when the arm rotates counter clockwise, it is positive:

To measure the total rotation, we use the terminal and the initial arm. We measure the amount of rotations by starting at the initial arm and ending at the terminal arm:

A supplementary angle is 180 degrees and a complementary angle is 90 degrees:

And onto the arcs:

Have a great long weekend!

And here are some links that might be of interest for some extra math stuff:

www.cemc.uwaterloo.ca
www.artofproblemsolving.com