Mastering Multiplication and Division Facts for 3rd Grade

The video tutorial covers a third-grade math problem involving multiplication and division facts. It uses a problem from the 2017 Texas STAAR test, where Kevin and his brothers share 27 grapes equally. The tutorial explains how to solve the problem using division and multiplication concepts, highlights common mistakes, and provides a step-by-step solution using diagrams. The correct answer is determined by dividing the grapes into equal groups, emphasizing the importance of understanding equal groups in multiplication and division.

Who is involved in the problem statement?

• Kevin and his three brothers

• Kevin alone

• Kevin and his two brothers

• Kevin and his two friends

Tags

CCSS.RI.2.1

CCSS.RI.3.1

CCSS.RL.1.1

CCSS.RL.2.1

CCSS.RL.3.1

What is the total number of grapes in the bowl?

• 54

• 9

• 27

• 81

Tags

CCSS.1.NBT.A.1

What mathematical operations are suggested by 'equal groups'?

• Addition and subtraction

• Multiplication and division

• Integration and differentiation

• Square and square root

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CCSS.4.NBT.B.5

How many people are sharing the grapes?

• 4

• 5

• 3

• 2

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CCSS.2.OA.C.3

What is the correct way to find the number of grapes each boy ate?

• Adding 27 grapes repeatedly

• Dividing 27 grapes into equal parts

• Subtracting grapes from 27

• Multiplying 27 grapes by 3

Tags

CCSS.3.OA.A.3

Why can't a boy eat 54 or 81 grapes?

• Because there are only 27 grapes in total

• Because it's physically impossible

• Because the numbers are too high

• Because they are not hungry

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CCSS.4.NBT.B.6

How many grapes did each boy end up eating?

• 54

• 7

• 9

• 27

Tags

CCSS.3.OA.A.3

What mistake could lead to thinking a boy ate 54 grapes?

• Adding 27 twice

• Multiplying 27 by 2

• Dividing 27 by 2

• Subtracting 27 from 54

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CCSS.5.OA.B.3

How is the number 81 mistakenly derived?

• By subtracting 27 from 81

• By multiplying 27 by 3

• By dividing 27 by 3

• By adding 27 three times

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CCSS.4.NBT.B.6

What is the final correct answer to the problem?

• 54 grapes

• 9 grapes

• 27 grapes

• 7 grapes

Tags

CCSS.3.OA.A.3