๐ Topic Summary
Arrays are a way to organize objects into rows and columns. When we have an array, we can use repeated addition to find the total number of objects. Each row represents a group, and we add the number of objects in each row together. For example, if an array has 3 rows with 4 objects in each row, we can write the repeated addition sentence as $4 + 4 + 4 = 12$. This means there are 12 objects in total.
This activity helps you understand how arrays connect to repeated addition. You'll use arrays to create and solve repeated addition problems. Remember, repeated addition is just adding the same number multiple times! It's all about making math visual and fun!
๐งฎ Part A: Vocabulary
- ๐ Term: Array - Definition: An arrangement of objects in rows and columns.
- โ Term: Repeated Addition - Definition: Adding the same number multiple times.
- ๐ Term: Column - Definition: A vertical arrangement of objects or numbers.
- โ๏ธ Term: Row - Definition: A horizontal arrangement of objects or numbers.
- ๐ข Term: Sum - Definition: The total when numbers are added together.
โ๏ธ Part B: Fill in the Blanks
An _______ is a set of objects arranged in rows and _______. To find the total number of objects, we can use _______ _______. Each row shows how many objects are in each group, and we add that number as many times as there are _______. The answer to our addition problem is called the _______.
๐ค Part C: Critical Thinking
Imagine you're arranging cupcakes on a tray for a party. How could you use arrays and repeated addition to make sure you have enough for everyone? Explain your process.