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Tuesday, January 10, 2017

Adding with Cuisenaire Rods

On Friday, we used our new Cuisenaire Rods to begin working with addition facts. Working with a partner, the first thing we did was to make one complete set of rods from 1 to 10 that we could use to help us figure out which rod was 4 units long or 7 units long, etc. Then we chose one rod as our base and tried to find as many combinations that we could make that would equal that rod's length.  For example, some of us chose the rod that was 7 units long. We found that we could make rods that were 7 units in length in many other ways: 3 + 4, 5 + 2, 6 + 1, 1 +1 + 1 + 1 +1 + 1 + 1, 5 + 1 + 1 and so on and wrote them in our math notebooks. We had a great time trying to find as many combinations as we could. If we thought we had found all of the combinations, we moved on to a different base rod. We were sad when it was time to stop but we will continue working on this during Exploration Stations now.

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