Are your children learning their multiplication facts? We know that it is important for children to be able to skip count and be able to answer simple multiplication answers.
Another aspect of teaching multiplication is to focus on fact families, which in turn leads to finding missing factors in expressions. And this free, low-prep missing factor game is a wonderful way to practice finding missing factors.
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This is a guest post from Rachel at You’ve Got This Math.
What is a Multiplication Factor?
Before we begin, it is important that your students understand the difference between a factor and product.
Factors are the numbers multiplied together to get the answer to a multiplication problem.
A product is the answer to a multiplication problem, or what we get when we multiply two or more factors.
How to find Missing Factors
Hands On Manipulatives:
Many times children need to see and play with manipulatives to fully understand a concept. Getting out cubes or another counting source is one way to let children work through finding factors.
First, have them figure out what the product is, and then count out that many objects.
Next, have them figure out the known factor is and organize their objects into that many groups.
After figuring out the number of groups, the students need to make sure their groups are equal.
Finally, the number of objects in each group is the missing factor.
Likewise, you could have them use the known factor to organize their objects into groups of that size (for example, make piles of 6…) and then see how many groups they are able to make. In this case, the number of groups is the missing factor.
This simple exercise builds an understanding of the relationships between multiplication and division. It also helps build a foundation for algebra!
If your children know their multiplication facts, then presenting this concept with fact family triangles would be a wonderful introduction.
Simply show them a fact family triangle with one angle covered up, and have the child figure out the answer.
Then show them an expression with the same factor missing, and let them solve.
This is an easy way for children to find the answers to missing factor expression.
All they need to do is find one of the factors at the top of the chart, scan down until they find the product, and then move their finger to the left until they find the missing factor.
This is definitely an easy option, but it isn’t going to help children work on their multiplication facts. I would recommend starting with the other options first.
Missing Factor Game Time:
Printable Game Set Up:
This missing factor BINGO game is simple to play and requires almost no-prep. All you need to do is…
- First, print off the game boards and distribute to players (get the download at the end of the post) Optional: Laminate them for added durability.
- Next, grab a die and game markers and you are ready to go!
How to Play Missing Factor BINGO:
The object of this game is to be the first to get four in a row or cover up the whole board (decide how you’ll play before you begin).
- To begin, each player rolls one die and then find an expression on their game board in which that the number can be used as a factor
- Players continue rolling at the same time, finding an expression that works with the number they rolled
- If a player has no options left given the number they rolled, they skip that turn
- When a player gets four in a row or covers up the whole board they are the winner!
I hope you enjoy exploring this multiplication concept with your kiddos.
Rachel is a homeschool mom to four little ones, ages 2 to 6. She is a former public elementary teacher, and has recently begun blogging at her page You’ve Got This. You can also find her on Facebook and Pinterest.
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