Exploring Array Representation through Multiplication

What is the first step in using multiplication to describe a set of objects?

• Drawing the objects

• Adding the objects together

• Identifying the rows and columns

• Counting each object individually

Tags

CCSS.3.OA.A.1

What is the purpose of using multiplication to describe sets of objects?

• To make math more complicated

• To understand the concept of arrays

• To simplify the counting process

• To learn how to draw

Tags

CCSS.3.OA.A.1

If an array has 3 rows and 6 columns, how many objects are there in total?

• 36

• 3

• 18

• 9

Tags

CCSS.2.OA.C.4

Can the order of multiplication (rows first or columns first) affect the total number of objects in an array?

• No, but it changes the shape of the array

• Yes, but only for odd numbers

• No, the total remains the same

• Yes, it changes the total

Tags

CCSS.3.OA.A.1

Why might it be useful to calculate the total number of objects using both rows first and then columns?

• To waste time

• To ensure accuracy

• To practice addition

• To make the math harder

Tags

CCSS.1.NBT.A.1

How many triangles are there in an array with 5 rows of 4?

• 40

• 20

• 25

• 9

Tags

CCSS.3.OA.A.1

If you have an array with 4 columns each having 5 triangles, how many triangles are there in total?

• 25

• 40

• 9

• 20

Tags

CCSS.2.OA.C.4

What is the total number of objects in an array with 4 rows of 6?

• 20

• 30

• 24

• 10

Tags

CCSS.2.OA.C.4

How can students check their understanding of multiplication arrays?

• Skipping the exercise

• Listening to music

• By memorizing the multiplication table

• Creating their own arrays and finding products

Tags

CCSS.3.OA.A.1

What should you do if you get a different answer from your partner?

• Check your arrays and products together

• Ignore their answer

• Stop practicing

• Assume you are correct

Tags

CCSS.4.NBT.B.5