Exploring Decimal Problem Solving Strategies

The video tutorial guides fifth graders through solving a multi-step word problem involving decimals. It emphasizes understanding the problem by retelling it without numbers, analyzing the numbers, and representing the problem with equations. The tutorial provides a detailed solution and highlights the importance of verifying the answer using estimation.

What is the primary goal of today's math talk?

• To learn about fractions

• To solve multi-step word problems using decimals

• To review previous math talks

• To introduce new mathematical concepts

Tags

CCSS.7.NS.A.1C

What should you do first when solving a word problem?

• Start calculating immediately

• Understand the context without focusing on numbers

• Write down all the numbers

• Ask a friend for help

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What operation represents sharing equally among Katrina and her friends?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.3.OA.A.2

How many friends does Katrina have in the problem?

• Two

• Three

• Four

• Five

Tags

CCSS.1.OA.A.1

What does the number 18 represent in the problem?

• The number of friends

• The total money earned

• The cost of the ice cream

• The number of cars washed

Tags

CCSS.1.OA.A.1

What is the correct equation to represent the sharing of money?

• 18 + 4 = E

• 18 / 4 = E

• 18 - 4 = E

• 4 x 4 = 18

Tags

CCSS.3.OA.A.2

How much money did Katrina initially have after sharing?

• $4.00

• $5.00

• $4.50

• $3.50

Tags

CCSS.6.NS.B.3

What is the final amount Katrina has after buying ice cream?

• $3.15

• $3.50

• $4.00

• $2.85

Tags

CCSS.7.EE.B.3

How did the teacher suggest verifying the solution?

• By asking a friend

• By checking the textbook

• By estimation and reviewing the problem

• By starting the problem over

Tags

CCSS.7.EE.B.3

What is a 'friendly number' used for in the context of this problem?

• To simplify division

• To make the problem harder

• To confuse the students

• To introduce a new concept

Tags

CCSS.4.NBT.B.6