This skill goes by many names: friends of 10, making ten, tens partners. Students should have extensive exposure to the combinations that make ten using objects or drawings in Kindergarten (CCSSM K.OA.4). If a child has to struggle to solve 8 + 3, they have no mental energy (or desire) left to grapple with the types of problems that will increase their capacity as a mathematician. Knowing math facts is similar to knowing sight words–it frees up the mind to solve real math problems. ![]() Sure, we want kiddos to have automaticity with their facts. There’s a big difference between memorizing and understanding. “In recent years there has been a huge shift away from rote memorization of math facts and toward a strategy-based approach for learning math facts. Let’s go back a little though first…as I was banging my hand on my head thinking of new ways to teach my students addition in a fun way I ran across this AMAZING post from the Math Coach’s Corner…. In fact, you could turn the cards into a write and wipe activity by asking children to draw the missing gumballs with a dry erase marker instead.Also, be sure to read through to the bottom to grab the freebies that are mentioned throughout the post! My students were keen to solve the problems with playdough again, but you could easily use buttons, counters or pom poms. Grabbing one card at a time, kids read the whole number at the top and worked out how many more gumballs they needed to make that number. To prepare, I simply printed, cut apart and laminated the task cards. They’re a fun way to work out missing parts as kids figure out how many more gumballs are needed to make the whole number. The next day, I pulled out our number bond task cards. The partners continued solving bubble bonds until they had worked through all of the number cards in their set. ![]() The kids eagerly worked in pairs and investigated the different number bonds that could be made for each number. Can you think of another way to make five?”. I thought out loud, “I can see that the number five is made up of two parts: one part is three and one part is two. So, I added two yellow playdough balls to the 2nd bubble and wrote “2” in the box below it. The class unanimously agreed that I needed two more to make five. I said, “If I have three bubbles now, how many more do I need to make five?” I asked the kids how many bubbles they saw and wrote their answer, three, in the first box. Then, I rolled three pink balls out of playdough and laid them in the first bubble. I randomly grabbed the number five card first and placed it on the mat. I build a tower, take part away and then ask questions like “how many are left?” and “how many more do I need to make…?” Bubbles Bonds ActivityĪfter putting away our unifix cubes, I was eager to pull out our first number bond activity: bubble bonds! It’s a fun way to investigate how parts work together to make the whole. Number bonds are a great way to begin teaching the inverse relationship between addition and subtraction. Or we could have used one pink and four yellows… For instance, in our example above, we could have used two pinks and three yellows to make five. I like challenging the kids to find another way to make each number too. Then, I break the tower into the two colors and have the kids count how many cubes are in each part. My students and I count how many cubes are in the “whole” tower. I begin by building a tower in two different colors so that each part can be easily identified (see the picture below). ![]() ![]() My favorite way to start teaching part-part-whole is making towers out of unifix cubes or LEGOs. Number bond activities help kids build their understanding of the part-part-whole concept, which refers to a whole number being made up of two or more parts. When you’re done, head over to our shop and grab some super fun Editable Math Fact Games! Solve missing addends with playdough, set up a fun math center with write and wipe cards… there are so many possibilities! If you’re teaching number bonds and would love a break from worksheets, these engaging, hands-on number bond activities are a must.
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