Last week in Math, students continued working on addition and subtraction word problems. We have been working hard on 3-digit subtraction with a medial zero. Here are two different scenarios with medial zero:
705 705
- 422 -426
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In the first problem, the ones place does not need to be regrouped, therefore the zero in the middle of the problem will be a 10 and the 7 will be reduced to a 6. In the second problem, the ones place does have to be regrouped. Therefore, the zero in the middle will be reduced to a 9 and the 7 will be reduced to a 6. This is all very confusing to eight and nine-year-olds!!! This is a really hard concept for 3rd graders and they are having a tough time with it and need LOTS of practice. Please work with them if you can at home. It's always good to hear someone else's voice teaching a hard concept. :)
We also worked on subtracting across three zeros such like this:
800 500
-555 -224
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This week in Math we will take what we know about rounding to the nearest ten and hundred, addition, and subtraction and put it all together. The kids will be required to look at a three digit Math problem, round the numbers, and then solve like this:
In Science, we just concluded our study on Matter and had our first big Science Test last week. In Science this week, we will begin our new unit of study. Students will begin studying the concept of Energy. We will review four forms of energy: sound, light, heat, and mechanical.
We will begin with Mechanical Energy and discover that there are two types of Mechanical Energy: Potential and Kinetic.
This week all 3rd grade teachers will be out on Wednesday afternoon meeting with the principals and on Thursday is our first field trip!
Love,
Ms. S
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