Wednesday, September 23, 2009

Scribe Post for 9/23/09

We spent the first 10 minutes or so going over the GeoGebra homework packet from last class. After that we discussed translation, reflection, and dilation. After this, we discussed problems from the homework: p. 70 (53, 55, 56) We took a break from going over homework, so Mr. O'Brien could pass back our quizzes. We quickly went over the answers. Mr. O'Brien also answered why calculators see -4² as being -16 -- and that to fix that we should enter the problem as (-4)² to get the answer of 16. Then, we went over p. 79 (25d, 31bd, 47, 55, 56, 53), and GeoGebra (20-22). In the last five minutes or so of class, we filled out a brief survey from the National Council of Teachers of Mathematics.
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2 comments:

  1. CHRHS student SophieSeptember 23, 2009 at 4:37 PM

    Hey Mr. O'Brien, Were we supposed to do the SAT practice quiz for homework for next class or are we just going to do it later?
    - Sophie Salas

    ReplyDelete
  2. obrienSeptember 24, 2009 at 4:11 AM

    Thanks, Molly- who's the next scribe?

    Don't worry about the SAT quiz- I'll fit it back in.

    ReplyDelete

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