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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. 2 + 1 = 3 Learning Objective Name ___________________________ Today, we will create 1 story problems. 1 make CFU What are we going to do today? What are we going to create? What does create mean? Create means to______________ Activate (or provide) Prior Knowledge CFU Which number tells us how many objects we have? (pair-share) Which number tells us what to add or subtract? (pair-share) What does the number sentence tell us to do? add or subtract (pair-share) Students, you have already worked with a number sentence. Today, we are going to use addition and subtraction number sentences to create or make our own story problems. A number sentence is written with : A symbol that tells us what to do. A first number that tells us how many objects. A second number that tells us what to add or subtract. 2 + 3 = 5 Equal sign Answer
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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. Concept Development A story problem describes 2 a number sentence using words. Story problems can be addition or subtraction problems. The last sentence in a story problem tells us what to do. 2 tells about CFU Which is a story problem? How do you know? _____ is a story problem because ____________. 2 + 1 = 3 Jessie has 2 red apples. She bought 1 more apple. How many in all? Addition (+) means put together. 2 – 1 = 1 Jessie has 2 green apples. She ate 1. How many are left? Subtraction (-) means take away. A. 2 + 3 = 5B. Marcus has 2 baseballs. He gets 3 more baseballs. How many baseballs in all? What can be two types of story problems? Two types of story problems can be _______ and ________. Which question would we use to solve an addition problem? We would use ____ because ________. A. How many in all?B. How many are left? In your own words, what is a story problem? A story problem is ______________________.
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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. 1. 3 + 1 = 4 Michael has // ///////. He got /// more. How many stars /////////// ? A story problem describes a number sentence using words. Story problems can be addition or subtraction problems. Create story problems. Skill Development/Guided Practice Step #1: Read the number sentence and object. Step #2: Create a story problem. a. Write how many objects the person has. Hint: First number. b. Write how many objects are added or subtracted. Hint: Second number. c. Write what the last sentence tells us to do. Hint: Use the symbol + or -. Step #3: Read the story problem aloud. stars CFU How did I identify how many objects the person has? How did I identify how many objects were being added? How did I know the problem is addition and not subtraction? How did you identify how many objects the person has? How did you identify how many objects were being added? How did you know the problem is addition and not subtraction? 3 stars 1 in all 3 stars 1 4 2. 2 + 3 = 5 hearts Maria has // ///////. She got /// more. How many hearts /////////// ? 23 2hearts 3 5 in all
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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. 3. 3 - 1 = 2 bones Lee’s dog has // ///////. Lee’s dog ate /// bone. How many dog bones ///// ? A story problem describes a number sentence using words. Story problems can be addition or subtraction problems. Create story problems. Skill Development/Guided Practice (continued) Step #1: Read the number sentence and object. Step #2: Create a story problem. a. Write how many objects the person has. Hint: First number. b. Write how many objects are added or subtracted. Hint: Second number. c. Write what the last sentence tells us to do. Hint: Use the symbol + or -. Step #3: Read the story problem aloud. CFU How did I identify how many objects the person has? How did I identify how many objects were being subtracted? How did I know the problem is subtraction and not addition? How did you identify how many objects the person has? How did you identify how many objects were being subtracted? How did you know the problem is subtraction and not addition? 3 bones 1 are left 3 bones 1 2 4. 3 - 2 = 1 balloons Mia has // ///////. She popped /// balloons. How many balloons /////////// ? 3 balloons2 are left 3 balloons 2 1
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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. Matthew got 1 blue and 1 red car for his birthday. Now, he has 2 cars in all. 1 + 1 = 2 cars in all Tanya has 2 pencils. She gave 1 pencil away. Now, she only has 1 pencil left. 2 – 1 = 1 pencil left Importance A story problem describes a number sentence using words. Story problems can be addition or subtraction problems. 1. Creating story problems will help you tell a story about things you get. 2. Creating story problems will help you tell a story about things you have given away. CFU Does anyone have another reason why it is important to create story problems? (pair-share) Why is it important to create story problems? You may give me one of my reasons or one of your own. Which reason is more important to you? Why?
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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. 1. 1 + 3 = 4 balloon Tara has // //////. She got //// more. How many balloons ///////////// ? Closure 1. What is a story problem? A story problem is ______________________. 2. Create story problems below. 3. What did you learn today about creating story problems? Why is that important to you? (pair-share) Step #1: Read the number sentence and object. Step #2: Create a story problem. a. Write how many objects the person has. Hint: First number. b. Write how many objects are added or subtracted. Hint: Second number. c. Write what the last sentence tells us to do. Hint: Use the symbol + or -. Step #3: Read the story problem aloud. 2. 2 - 1 = 1 pears Adrian has // //////. He ate //// pear. How many pears ///////////// ? 1 balloon3 in all 1 balloon 3 4 2pears1 are left 2 pears 1 1
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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. 1. 2 + 4 = 6 cars Lance has // //////. He got //// more. How many cars ///////////// ? Independent Practice Name __________________________ A story problem describes a number sentence using words. Story problems can be addition or subtraction problems. Step #1: Read the number sentence and object. Step #2: Create a story problem. a. Write how many objects the person has. Hint: First number. b. Write how many objects are added or subtracted. Hint: Second number. c. Write what the last sentence tells us to do. Hint: Use the symbol + or -. Step #3: Read the story problem aloud. Create story problems. 2. 4 - 1 = 3 apples Tyler has // //////. She ate //// apple. How many apples ///////////// ? 2 cars 4 in all 2 cars 4 6 4 apples 1 are left 4 apples 1 3
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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. 1. 4 - 2 = 2 stars Marty has // //////. He gave //// stars away. How many stars ///////////// ? Periodic Review 1 Name __________________________ A story problem describes a number sentence using words. Story problems can be addition or subtraction problems. Step #1: Read the number sentence and object. Step #2: Create a story problem. a. Write how many objects the person has. Hint: First number. b. Write how many objects are added or subtracted. Hint: Second number. c. Write what the last sentence tells us to do. Hint: Use the symbol + or -. Step #3: Read the story problem aloud. Create story problems. 2. 2 + 2 = 4 pencils Ava has // //////. She got //// more pencils. How many pencils ///////////// ? 4 stars 2 are left 4 stars 2 2 2 pencils 2 in all 2pencils 2 4
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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. 1. 4 + 3 = 7 bows Janet has // //////. She got //// more bows. How many bows ///////////// ? Periodic Review 2 Name __________________________ A story problem describes a number sentence using words. Story problems can be addition or subtraction problems. Step #1: Read the number sentence and object. Step #2: Create a story problem. a. Write how many objects the person has. Hint: First number. b. Write how many objects are added or subtracted. Hint: Second number. c. Write what the last sentence tells us to do. Hint: Use the symbol + or -. Step #3: Read the story problem aloud. Create story problems. 2. 5 - 3 = 2 trucks Brian has // //////. He lost //// trucks. How many trucks ///////////// ? 4 bows 3 in all 4 bows 3 7 5 trucks 3 are left 5 trucks 3 2
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DataWORKS Educational Research (800) 495-1550 www.dataworks-ed.com ©2011 All rights reserved. Comments? feedback@dataworks-ed.com 1 st Grade Algebra and Functions 1.3 Create problem situations that might lead to given number sentences involving addition and subtraction Lesson to be used by EDI-trained teachers only. 1. 5 + 3 = 8 cows Farmer Dell has // //////. He bought //// more cows. How many cows ///////////// ? Periodic Review 3 Name __________________________ A story problem describes a number sentence using words. Story problems can be addition or subtraction problems. Step #1: Read the number sentence and object. Step #2: Create a story problem. a. Write how many objects the person has. Hint: First number. b. Write how many objects are added or subtracted. Hint: Second number. c. Write what the last sentence tells us to do. Hint: Use the symbol + or -. Step #3: Read the story problem aloud. Create story problems. 2. 6 - 2 = 4 cupcakes Gina has // //////. She gave //// cupcakes away. How many cupcakes /////////// ? 5cows 3 in all 5 cows 3 8 6 cupcakes 2 are left 6 cupcakes 2 4
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