Mastering Multiplication with Arrays Lesson Activities
Dive into the world of arrays and multiplication with engaging activities focused on understanding multiplication through arrays, drawing arrays to solve problems, and creating multiplication stories. Practice skills like writing multiplication number sentences and solving real-life scenarios using arrays.
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Presentation Transcript
Arrays and Multiplication Lesson 4-2 CCSS 3.OA.1, 3.OA.3, 3.OA.5
Warm Up Review! Write these numbers in standard form. 400,000 + 60,000 + 700 + 20 + 5 Six hundred fifty thousand two hundred one Thirty five thousand twenty two 90,000 + 50,000 + 7,000 + 600 + 30 + 1
Think and Write There are many things in the world around us that are arranged in rows. One example is a picture album. What other examples can you think of?
Vocabulary Array: A strategy used to solve a multiplication problem by drawing equal rows with an equal number of objects in each row. Example: For the problem 2 x 3, you would make 2 rows with 3 objects in each row.
Problem 1 Karisa arranges her pea plants in her garden into 3 rows. There are 7 plants in each row. How many pea plants does she have in all? Write a multiplication number sentence for this problem. Then draw an array to help you solve.
Problem 2 Mr. McGregor is planting his garden. He makes 4 rows and plants 4 plants in each row. How many plants does Mr. McGregor plant altogether? Write a multiplication number sentence for this problem. Then draw an array to help you solve.
Problem 3 Ms. Sanders is arranging some bunches of grapes for her classroom lunch party. She puts the grapes into 4 rows with 4 bunches of grapes in each row. How many bunches of grapes does she have in all? Write a multiplication number sentence for this problem. Then draw an array to help you solve.
Problem 4 Greg is planting carrots. He puts the carrot plants into 5 rows with 3 plants in each row. How many carrot plants does Greg have? Write a multiplication number sentence for this problem. Then draw an array to help you solve.
Create! Create a number story that can be solved by drawing this array.
