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Topic: Re: response to math journal on rounding...
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Posts: 226
Registered: 12/6/04
Re: response to math journal on rounding...
Posted: Feb 27, 1997 5:35 AM
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Dear Numeracy,
Yes, Math journals are all *MY* idea (NOT)....One of my math mentors,
the late Sue Stetzer, gave me a book called WRITING FOR MATHMETICS by a
teacher at Germantown Friends school , Joan Ploughman (?) not totally sure of
her name. We have had extensive discussions on Numeracy of math journals and
I'm a big fan of them. Perhaps as I came from a literacy background I still
want the written word as part of my student/teacher communication?

Melissa wrote:
<< She has since said that she would ask her new group of students this
week for journal entries. I am looking forward to her findings on student
thinking about rounding from their journals. >>

Well, only "3" new students showed up yesterday... this class has tragic
attendance problems... and 2 of them had "bad days" of not understanding
"ANY" math.. but, I asked the entire class to answer : What is the process
you use when you shop and want to estimate or "round" the prices? My two new
"fragiles" got panicky so in an effort to "help" (and totally mess up my
chance of a more student generated answer) I said, "What would you round an
item that cost $7.89 to? an item that cost $ .39?
I read the responses and got the predictable $8.00 from everyone... and $ .40
from all but 2 of the 12 in class. They said $ .50... I think this will work
better in the future if I do it when we are learning estimation, maybe before
we do any "formal" estimating?
It may take me a while to collect some meanigful data on this? Take care,

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