We continued to study and solve stories with missing partners this week during our math switch. We also introduced our yellow quilt cards which have trained the kids to find a missing partner by clapping and counting UP with their fingers until they get to the total.
We ended the week circling back to subtraction stories again which we first visited during our Unit 2. Our number one strategy for solving these stories has been to use an equation or math mountain. However, we encouraged our students to draw a circle drawing first if they weren’t sure how to create a subtraction equation for the story. Here is an example of our methods for solving a subtraction story:
Sam had 6 cookies. He ate 2 of them.
How many cookies are there now?
We emphasized that a subtraction equation always begins with the total. We have to make sure to put the GREATEST number first in our equation and at the top of our math mountain, so our answer make sense.