Exploring Arrays and Repeated Addition Concepts

What is an array in the context of this lesson?

• A graphical representation of data

• A type of mathematical operation

• A collection of different objects

• An arrangement of objects in rows and columns

Tags

CCSS.3.OA.A.1

How many rows are there in the described array?

• Fifteen

• Ten

• Five

• Three

Tags

CCSS.2.OA.C.4

What does repeated addition help to find in an array?

• The number of columns

• The number of rows

• The total number of items

• The difference between items

Tags

CCSS.2.OA.C.4

If an array has 3 columns and 5 items in each, what is the repeated addition sentence?

• 3+3+3

• 5+5+5+5+5

• 5+5+5

• 3+3+3+3+3

Tags

CCSS.2.OA.C.4

What is the total number of candies in the array using rows for calculation?

• 25

• 20

• 10

• 15

Tags

CCSS.2.OA.C.4

How many candies are in each row if the array has five rows?

• Three

• Five

• Fifteen

• Ten

Tags

CCSS.2.OA.C.4

What should you not include between numbers and signs in your number sentence?

• Spaces

• Letters

• Commas

• Numbers

Tags

CCSS.6.EE.A.1

Which of the following is a correct repeated addition sentence for the described array?

• 3+3+3

• 3+3+3+3+3

• 5+5+5

• 5+5+5+5+5

Tags

CCSS.2.OA.C.4

What did we learn about the positioning of columns in an array?

• They are positioned horizontally

• They are positioned diagonally

• They are not specifically positioned

• They are positioned vertically

Tags

CCSS.3.OA.A.1

What is the main purpose of using repeated addition with arrays?

• To find the highest number

• To calculate the total number of items

• To determine the number of rows

• To visualize the data better

Tags

CCSS.2.OA.C.4