Grade 3, Math

Dividing with Remainders

instruction

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Web Link Button  Division: Dividing with Remainders





Lesson Guide

You may wish to watch any online instructional components included with this lesson with your student so that you may answer any questions he may have. Complete the instruction below with your student.

Pose the Problem math3.19.04.image1
Jack has 15 tomato plants. He wants to plant them in rows of 4. How many rows of tomatoes will there be? Will there be any tomato plants left over? Distribute counters to your student. Provide time to work, and then invite your student to share his solution.
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Model/Demonstrate
When you divide 15 ones into 4 groups, how many ones are in each group? [3 ones ] How do you record this? [Write a 3 in the quotient in the ones place.] How many ones are left over? [3 ones] You record this by writing the letter R and the number left over. On paper, demonstrate how to record a quotient with a remainder.
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Interaction
How can you check that your answer is correct? [I can multiply 3 × 4 = 12 and then add 3 ones.]
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Tip: Use a consumer-related situation to help your student understand division with remainders. Ask: Suppose you have 15 dollars. Each book at the book fair costs 2 dollars. How many books can you buy? [7 books] How many dollars would you have left? [1 dollar] Why can’t you buy another book? [You don’t have enough dollars.] Relate the answers to the quotient with a remainder, 7 R1.
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