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Unit 8 - Lesson 7 - Grade 2: Illustrative Mathematics

Last updated 9 months ago
15 questions
Note from the author:
Grade 2 Unit 8
Lesson 7: What is an Array?
CC BY 2021 Illustrative Mathematics
Grade 2 Unit 8
Lesson 7: What is an Array?
CC BY 2021 Illustrative Mathematics
Lesson: What is an Array?

Which One Doesn't Belong: Counter Collections (Warm Up)

1

Which one doesn’t belong?

What is an Array?

1
Arrange each set of counters into equal rows with no extra counters.

How many counters are there in all? _______

Show how you arranged them using words, drawings, or numbers.
1
Arrange each set of counters into equal rows with no extra counters.

How many counters are there in all? _______

Show how you arranged them using words, drawings, or numbers.
1
Arrange each set of counters into equal rows with no extra counters.

How many counters are there in all?_______

Show how you arranged them using words, drawings, or numbers.

Rows of Counters

1

How many rows are in this array?

1

How many counters are in each row?

1

How many counters are there in all?

1

How many rows are in this array?

1

How many counters are in each row?

1

How many counters are there in all?

1

Use 6 counters to make 2 rows with the same number in each row. How many counters are in each row?

1

Use 20 counters to make 4 rows with the same number in each row. How many counters are in each row?

Cool Down: Count the Counters
1

How many rows are in this array?

1

How many counters are in each row?

1

How many counters are there in all?