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Topic: Number Sense and Computational Fluency
Replies: 92   Last Post: Jul 24, 2008 5:09 AM

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 LA Pruske Posts: 4 Registered: 12/3/04
Packages and Groups Book
Posted: Apr 29, 2001 10:07 PM

This spring I used the Packages and Groups book and was very pleased
with the activities and the results. My students enjoyed the multiple
tower activities and really grew in their understanding of clustering
with the double-digit multiplication problems. One activity I really
liked was the Making a Multiplication Table. (Sessions 1 and 2 in
Investigation 1). Students use the array cards to fill in a blank
multiplication table- a 12x12 array. Doing this helped them to prove
why the multiplication table works. It was a fun and engaging
activity that really cemented their understanding of arrays and
multiplication.
As an extension of this activity, I had them revisit perimeter and
area. We used just the arrays that made 36 and colored each one a
different color. (1x36 and 2x18 didn't fit so we just talked about
how they would look on the paper.) Then I asked them to imagine that
they had to carpet and put a wallpaper border on each room. They
estimated first, and were very surprised to "see" that the long skinny
room (probably a hallway) would need more wallpaper than the 6x6 room.

If you haven't used this book yet, I highly recommend it!
Lee Ann Pruske
Milwaukee, WI

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