Teacher2Teacher |
Q&A #2465 |
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What you are describing is called compensation. It is a great way to compute, because it avoids "messy" regrouping. You are right, the concept of ten is very important for students to recognize and understand. Have you ever used ten frames? They are simply 2 by 5 grids that can be used to build amounts up to ten. You can place a group of counters in the frame, then determine how many more are needed to reach ten, or you can fill a ten frame and then group the counters into two equal (or unequal ) groups, noting how many different ways that can be done. Making bean stick counters is also an interesting experience for young students. Have them count out ten beans and then glue them to a popsicle stick. Now they have a place value model for ten ones. The more they make, the more you have to use with the class, and the more practice and reinforcement they get with ten. -Gail, for the Teacher2Teacher service |
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