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So I have to admit, after hearing about this strategy the first time I thought, "Why didn't I learn that?!?!" This is an amazing strategy that can be used to solve basic facts all the way up to way more challenging facts. We built the foundation for this strategy by making sure all the first graders know the "best friends" of ten aka the number pairs that make ten. Today we learned that we can find sets of ten in addition problems and use base 10 to solve the problem. Here are some visual examples of how this strategy works. Using a double ten frame (as seen above) we can model the two addends in the addition problem. The next step is to make a set of 10. We usually pick the number that is closest to ten. Here you can see that we made a set of ten and now the problem is 10 + 5. This is much easier for us to solve! Below is another way to think about the problem. This strategy takes time and practice. Not all students will "get it" right away. I will continue to expose the first graders to this strategy throughout the year.
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AuthorMiss Matthews' First Grade Class Archives
May 2021
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