Reasoning

​PROBLEM-SOLVING

Lesson 2-8​: REASONING

MATH GOAL OF THE DAY

I can make sense of quantities and relationships in problem situations.​

A group of students collected donations for a toy drive. They collected a total of 3,288 toys one week and 1,022 toys the next week. They donated 1,560 toys to the Sunrise House and the rest were donated to Sells Community. How many toys were donated to Sells Community? Use reasoning about numbers to show and explain how two quantities of toys given to charity are related.

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​Solve and Share!

Be a good thinker!

These questions can help you.​

-What do the numbers and symbols in the problem mean?

-How are the numbers or quantities related?

-How can I represent a word problem using pictures, numbers, or equations?​

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10 Minutes

Thinking Habits!

​Look Back!

​Reasoning

Over three weeks, the students collected a total of 8,169 toys. How many toys did they collect in the third week? Complete the bar diagram to show your reasoning. Did the students collect more toys in the third week than in weeks 1 and 2 combined? Explain.

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Some text here about the topic of discussion

​How Can YOu Use Quantitative Reasoning To Solve Problems?

​WORD PROBLEM 1

Kara and Carl join their mother on a boat off the coast of the Florida Keys. Their mother is a scientist studying blue marlins. Each child gets to help weigh two marlins. How much more did Kara's marlins weigh than Carl's?​

​Kara's Marlins ​ Karl's Marlins

948 pounds 895 pounds

1,219 pounds​ 973 pounds

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​How Can YOu Use Quantitative Reasoning To Solve Problems?

​QUESTION!

How can you draw a diagram to help reason how the numbers in the problem are related?​

​How Can YOu Use Quantitative Reasoning To Solve Problems?

​QUESTION!

How can you use reasoning to solve this problem?

​Independent Practice

​ANSWER QUESTIONS 3, 4, AND 5

TOPIC 2/ LESSON 2-8

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