Since the beginning of the school year, I’ve been working on slowly introducing the memorization of math facts to my son. This week we’ve been focusing on learning the numbers that add up to ten. I thought I’d share with you the making 10 activities we’ve done this week, including a free game I created!
We started off by using manipulatives to show how we make ten, and what better manipulatives are there than Goldfish, right? I truly speak my son’s love language when I use food as math manipulatives. 🙂
One of the foundations of our math program, Singapore Math, is getting kids to think of numbers in terms of whole and parts. So I started by counting out 10 goldfish and placing them in our “whole” box.
I had my son count them and then tell me the whole or total amount of goldfish we had. Then, we wrote the number “10” in our whole box and moved all the goldfish into one of the “part” boxes. We wrote a number sentence to represent our picture: 10 goldfish in one box plus 0 goldfish in another box equals 10 goldfish in all– 10+0=10.
Next, we moved one fish from the top “part” into the bottom “part” and again wrote a number sentence to represent our picture. I love this as a visual because kids can see that they still have 10 total goldfish. They haven’t taken away or added any, they’ve simply just shown it in a different way.
We continued moving one fish at a time from the top “part” to the bottom “part” recording our addition sentences as we went.
Once we started getting to where we were making number sentences that we’d already done just the numbers were reversed, I began writing them beside one another so that he could easily see the commutative property of addition (even though we don’t call it that yet!).
We continued moving and recording our number sentences until all the goldfish had been moved into the bottom “part” and none were left in the top “part”. We had officially found all the numbers that add up to make 10 and his favorite part: eat the goldfish! Ha!
Next, I taught him a little song I made up to the tune of “Frere Jaques” to help him remember the numbers that make 10.
Since he understands that the order of the addends can be changed and it will still equal 10, I made the song to include the number pairs that make 10, instead of including individual number sentences in the song. He knows that “8 and 2” can be 8+2 or 2+8. We’ve been singing it everyday and it’s really helped him to learn these math facts very quickly!
Our final making 10 activity we did this week, and probably his favorite, was the “Spin to 10” game I made for him to practice these facts.
To play, you put a paper clip in the center of the spinner and hold it in place with a pencil. Next, you spin the paper clip and see what number it lands on. You color in the number on the grid that when added to the number you land on will equal ten. For example, if you land on 4, you would color in one box with a 6 in it because 4+6=10. You keep spinning and coloring in until you have colored in five boxes in a row. The five boxes in a row can be vertically, horizontally, or diagonally.
You can download these FREE making 10 activities by clicking on the picture below. The file contains the song and two versions of the game.
Are your students working on math facts right now? I’d love to hear any ideas you might share for how you teach your students to make 10!