From: Susan (for Teacher2Teacher Service)
Date: May 06, 1998 at 17:08:07
Subject: Re: Place value in 4th grade

A calculator activity I do is to have students build numbers based on certain 
criteria:

Make a three-digit number with a 6 in the tens place. 

  OR

Make a four-digit number larger than 3,500 with a four in the ones place.

  OR 

Make a four-digit number with a 3 in the tens and a 9 in the hundreds place. 

When students have a number that they believe is correct, they jot it down and try 
to make another on the calculator. We list 10-12 on the board and talk about what 
they have in common: a six in the tens, they all have a sixty-something, etc., and 
check for understanding that way. This really helps to develop place value.

- Susan

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