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Q&A #19058


teaching special ed. place value

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From: Claire (for Teacher2Teacher Service)
Date: Nov 17, 2007 at 10:33:44
Subject: Re: teaching special ed. place value

>I am a 4th grade special ed teacher looking for a simple way to teach my >studers large numbers, so that they can write the numbers as well as >remember which place comes next. --------------------- Hi, Fannie -- Thanks for writing to T2T. Place value can be a difficult concept for many children. Students might be able to memorize the place names, but that isn't of much value if they don't understand the magnitude of the numbers. The larger the numbers, the less likely that they'll have any way to conceptualize the relative size of numbers. Base 10 blocks are an effective manipulative for helping students understand place value. If you don't have any handy, check out the virtual base blocks at http://nlvm.usu.edu/en/nav/category_g_1_t_1.html These help children understand how to compose and decompose numbers, e.g., 3,685 = 3,000 + 600 + 80 + 5 Cut out 10 by 10 squares from 1/4 in graph paper to represent 100. Have students paste strips of 10 of them to show 1000, then 10 strips into a square to show 10,000. Combine this with children practicing lots of oral and written language and notation. There are a number of engaging children's books that address large numbers. Look for: The King's Chessboard, Birch How Much is a Million?, Schwartz A Grain of Rice, Pittman One Grain of Rice, Demi Check out our Place Value FAQ page on the T2T site for other ideas suggested by Associates and teachers: http://mathforum.org/t2t/faq/ I hope this is helpful. Please write again if you have more questions. -Claire, for the T2T service Thanks for visiting our on-line community. Visit Teacher2Teacher again at http://mathforum.org/t2t/ It is now possible to make a financial contribution to help The Math Forum. Please read more about this possibility: http://www.drexel.edu/ia/mathforum/.

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