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Wednesday, November 30, 2005 

Matrices and Determinants

Check #34
Practice BM 24.1-4
4.1 and 4.2: Matrices
        Alg2_Matrix_Notes.pages
• Adding (BM 2.5)
• Subtracting (BM 2.5)
• Multiplying (BM 2.6)
HW: #36 WS 4.1 and 4.2 1-10 on both
4.3 Determinants and Cramer's Rule
• 2x2
• 3x3
• Set-up of Cramer's Rule
• BM 2.8
HW: #37 page 218 #13-23 (o), 37-41 (o), 45, 47
Reminder: Practice Final and several BMs on Friday, 12/2 and Grade Report #4 Due 12/2

Today I thought it was really cool how you can write out the steps for an Inverse problem to get the answer, this would be an easy way to check your answer as well. I think I will probably continue doing it the normal way, it makes it easier for me to see the problem unfold step by step.

Multiplying Matrices has a lot of steps to it, but seems to be fairly easy. I am looking forward to Friday and The make-up test, and hopefully I'll pass all six benchmarks first try!

Hey, i thought that was really helpful when you put the numbers as letters so that way we all could understand better what order you had to do it in. thanks.

Hey i thought that it was good when you put the letters instead of numbers, and that way we could all see what the orders is, i thought that was really helpful. thanks again.

I really liked the Inverse thing it was so awesome and thanks for talking to my parents.

The invereses don't really have much to them. I hope I can pass all those benchmarks on Friday. I was so suprised that there is actually an easier way to doing 3 variable equations. I didn't pass that benchmark and now I'm pretty sureI can. I really understood the new way to doing those problems. :) [yay!]

Today we larned matrices in ch. 4, we took 4 pages of notes and there was ex.s od 2x2 or 3x3 and others. so far its easy for ex its just right & down a col.. adding-sub. mult....

well in class we had soo much fun MAN OH MAN it coukdnt stop laughing the comments that people made were hilarious then when we added and subtracted matrices those were easy. it started to get difficult when we multiplied then i diddnt know what i was doing. so all i had was meagan which i wanna thank for helping get through it.
oh and that new thing we learned about the inverses was so kewl and made things alot easier. overall a good day!

At first I thought that I was never going to understand this but, then when you changed the numbers into letters it started to get easier. I think by the time the benchmark comes I should be ready.

To Determinant the Matrix, or benchmark 2.6, it was really difficult to understand until you showed us what steps to take by letters. After that I understood it, and it became easlier for me to learn.

Hey Mr. Flelstrom, I found a site with math poems and songs. :) Here's is one for the quadratic formula.

Quadratic Formula Rap

From square of b, take 4ac;
Square root extract, and b subtract;
Divide by 2a; you've x, hooray!

Pretty, uhh..weird. Anyway...here is the link CLICK HERE!

Weds lesson was interesting and fast for a math lesson , it refresed my memory alot

Caroline, thanks for the great site. Lots of funny stuff on there. Good job.

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