Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Education » math-teach

Topic: reading numbers
Replies: 15   Last Post: Jun 23, 1995 10:21 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Michael South

Posts: 16
Registered: 12/6/04
reading numbers
Posted: Jun 20, 1995 2:42 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

If you can stand it, here's one more point on the reading numbers
issue. All of this talk has made me wonder about what those symbols
(a dot, a four, and a five) really mean. The fact that we always assume
base ten jumped unbidden into my head. The real way to say it might be
"radix point 4 5 base ten". Now, I am not suggesting that we teach it to
kids this way, just a) noticing an interesting aspect of this discussion
and b) reiterating that there must be some balance between convenience and
conceptual correctness.

It also might be a fun thing to think about what .45 is base six, for
example. Maybe some students would get a "bigger picture" of what the
radix point means if they could see what it meant with other bases.

And as long as I'm dreaming, I'll just go ahead and pretend we have the time
to go off and explore things like this with students...

Actually, concerning that point, how many of you teachers feel like the
number of subjects you are supposed to "cover" inhibits the time you have
for exploring? Is this something that should be considered in education
reform?

mike





Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.