Exploring Arrays and Repeated Addition Strategies

This lesson teaches how to solve word problems using arrays and repeated addition. It introduces the CUBES method, which involves five steps: Circle the numbers, Underline the question, Box important math words, Eliminate unnecessary information, and Solve and check. The lesson provides a detailed example of applying the CUBES method to a word problem about counting flowers in rows. Students are then guided through a practice problem involving arranging chairs in rows.

What does the 'C' in the CUBES method stand for?

• Calculate the solution

• Circle the numbers

• Cut out unnecessary information

• Combine similar terms

What is the second step in the CUBES method?

• Box important math words

• Underline the question

• Eliminate unnecessary information

• Solve and check

Why is it important to 'underline the question' in the CUBES method?

• To make the problem look neat

• To identify what needs to be solved

• To highlight the numbers

• To find unnecessary information

Which words indicate that addition might be needed to solve a problem?

• All together

• Less than

• More than

• Divided by

Tags

CCSS.1.OA.A.1

What does 'eliminate unnecessary information' help with?

• Simplifying the math problem

• Finding the correct numbers to use

• Understanding the question better

• Ignoring the main question

Tags

CCSS.RI.7.2

CCSS.RI.8.2

CCSS.RL.7.2

CCSS.RL.8.1

CCSS.RL.9-10.2

What is the purpose of 'solving and checking' in the CUBES method?

• To make the problem more complicated

• To find more problems to solve

• To skip unnecessary steps

• To ensure the solution fits the problem

What does the 'B' in CUBES stand for?

• Build the problem

• Box important math words

• Break down the question

• Begin solving

Tags

CCSS.7.NS.A.3

What strategy is suggested by the word 'rows' in a word problem?

• Using an array and repeated addition

• Subtraction

• Division

• Multiplication

Tags

CCSS.2.OA.C.4

How many flowers did Maria have if she arranged them in 5 rows of 3?

• 15

• 18

• 8

• 10

Tags

CCSS.2.OA.C.4

How many chairs did Abby set up if she made 3 rows of 4 chairs?

• 9

• 11

• 7

• 12

Tags

CCSS.2.OA.C.4