Learning Objective. Different Ways to Add Poster. We will solve 1 addition word problems. What are we going to learn? What does solve mean? Solve means __________. CFU. Activate Prior Knowledge. 31 + 26 = 57. sum. addends. - PowerPoint PPT Presentation
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CCSS 2nd Grade Operations and Algebraic Thinking 1.1Use addition and subtraction within 100 to solve one- and two-step word
problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and
equations with a symbol for the unknown number to represent the problem.Lesson to be used by EDI-trained teachers only.
5) There were 53 crayons in the container. Josie put some more crayons in there. Now there are 78 crayons. How many crayons did Josie put in the container?
6) There were 43 books on the shelf. Mr. Lee put some more books on there. Now there are 62 books. How many books did Mr. Lee put on the shelf?
Strategy (Number line)
Josie put _____________________________.
Equation
Mr. Lee put ____________________________.
Strategy (Number line)
Equation
Read the problem.Write an equation to represent the problem. Solve for the unknown number using an addition strategy. (write)
Solve addition word problems.1
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An equation uses an equal sign to say two amounts are the same. •An equation can be used to represent an addition word problem.
How did I/you write an equation to represent the problem?How did I/you solve for the unknown number?
How did I/you write an equation to represent the problem?How did I/you solve for the unknown number?
CFUCFU
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Skill Development/Guided Practice (continued)
Skill Development/Guided Practice (continued)
Different Ways to Add Poster
CCSS 2nd Grade Operations and Algebraic Thinking 1.1Solve addition word problems.
Solving addition problems will help you in a fashion designing career.
Solving addition problems will help you do well on tests.
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Does anyone else have another reason why it is relevant to solve addition word problems? (Pair-Share) Why is it relevant to solve addition word problems? You may give one of my reasons or one of your own. Which reason is more relevant to you? Why?
Does anyone else have another reason why it is relevant to solve addition word problems? (Pair-Share) Why is it relevant to solve addition word problems? You may give one of my reasons or one of your own. Which reason is more relevant to you? Why?
CFUCFU
2Sample Test Question:
Mari had 47 stickers. Her dad bought her some more stickers. Then she had 62 stickers total. How many stickers did her dad buy her?
Show your work and explain how you got your answer.
An equation uses an equal sign to say two amounts are the same. •An equation can be used to represent an addition word problem.
RelevanceRelevance
There were 23 yards of fabric in the shop. Francis bought 16 yards more for the fashion show.
CCSS 2nd Grade Operations and Algebraic Thinking 1.1Solve addition word problems.
What did you learn today about solving addition word problems?(Pair-Share) Use words from the word bank.
An equation uses an equal sign to say two amounts are the same. •An equation can be used to represent an addition word problem.
Skill ClosureSkill Closure
Access Common CoreAccess Common Core
Summary ClosureSummary Closure
1) There were 22 kids in the library. 17 more kids came there. How many kids are in the library now?
2) There were 37 pencils in the box. Mrs. Tang put some more pencils in there. Now there are 52 pencils. How many pencils did Mrs. Tang put in the box?
Strategy (Drawing)
Equation
Read the problem.Write an equation to represent the problem. Solve for the unknown number using an addition strategy. (write)
Solve addition word problems.1
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Strategy (Number line)
Equation
Word Bank
solvestrategyaddend
sum
There are 34 clips in a box. Some more clips were put in the box. Now there are 47 clips in the box. How many clips were put in the box?Explain why the equation below will not help you solve the problem.
There are _____________________________. Mrs. Tang put __________________________.
Different Ways to Add Poster
There were 13 clips added to the box. The equation will not help because 47 is the sum or the total of clips in the box.
CCSS 2nd Grade Operations and Algebraic Thinking 1.1Solve addition word problems.
Independent Practice (continued)An equation uses an equal sign to say two amounts are the same. •An equation can be used to represent an addition word problem.
3) Hanna has 43 pictures in her cell phone. She took some more pictures today. Now there are 67 pictures. How many pictures did she take today?
4) Some pigs were in the mud. 19 more pigs jumped there. Then there were 53 pigs. How many pigs were in the mud before?
Strategy (Number line)
Equation
Strategy (Number line)
Equation
Hanna took ____________________. There were ____________________________.
Read the problem.Write an equation to represent the problem. Solve for the unknown number using an addition strategy. (write)
Solve addition word problems.1
23
Different Ways to Add Poster
CCSS 2nd Grade Operations and Algebraic Thinking 1.1Solve addition word problems.