If students can successfully identify repeated addition in arrays, they will be better equipped to understand multiplication and solve problems more efficiently. Here are some fun and engaging activities to help students develop this skill with arrays that sum to 10.

1. Array Dice Game

For this game, students will need a partner and two dice. They will take turns rolling the dice and creating arrays. The first step is to roll the dice and record the sum on a piece of paper. Next, they will use counters to create an array with that many counters. For example, if they roll a six, they might create an array of three rows with two counters in each row. Then they will write the repeated addition expression to represent the array. The player with the most arrays after ten rounds of play wins.

2. Memory Match

In this game, students will match arrays with their corresponding repeated addition expression. Start by creating cards with arrays on one side and the repeated addition expression on the back. Lay all the cards face down and let students take turns flipping over two cards at a time. If the array and expression match, they get to keep the cards and go again. The player with the most cards at the end of the game wins.

3. Array Art

For this activity, students will use colored construction paper to create arrays that sum to 10. After creating the arrays, they can use markers or glitter to label the repeated addition expression on the paper. Encourage students to use different colors and shapes to make their arrays unique. Then, display the artwork in the classroom for all to see.

4. I Spy

This variation of the classic game can help students practice identifying arrays that sum to 10. The teacher or a student can say “I spy an array that sums to 10” and everyone must then try to find the array. The first student to point out the correct array gets to make the next statement “I spy an array that sums to 7” and the game continues.

5. Real-World Arrays

Have students look for arrays in real life. For example, a muffin tin that has 12 cups can be broken down into 6 rows of two cups, resulting in the repeated addition expression 2 + 2 + 2 + 2 + 2 + 2. Encourage students to write out the repeated addition expressions for the arrays they find and share them with the class.

These activities can help make repeated addition and arrays a more engaging topic for your students. By making the connection between repeated addition and multiplication, students can gain a better understanding of basic mathematical concepts that will serve them well in the years to come.