Grade 1: Chapter 5 – Addition and Subtraction Relationships
Chapter Essential Question: How can relating addition and subtraction help you to learn and understand facts within 20?
Before(Kindergarten) / Chapter FiveStandards
Grade One / After
(Grade Two)
Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
(K.OA.1, K.OA.2, K.OA.3, K.OA.4, K.OA.5_ / Operations and Algebraic Thinking 1: Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing with unknowns in all positions, e,g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
- I can solve addition and subtraction problem situations using the strategy make a model.
- I can choose an operation and strategy to solve an addition or subtraction word problem.
Operations and Algebraic Thinking 6: Add and subtraction within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on: make ten (e.g. 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g. adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13
- I can record related facts within 20.
- I can identify related addition and subtraction facts within 20.
- I can apply the inverse relationship of addition and subtraction.
- I can represent equivalent forms of numbers using sums and differences within 20.
- I can add and subtract facts within 20 and demonstrate fluency for addition and subtraction within 10.
Operations and Algebraic Thinking 7: Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
- I can determine if an equation is true or false.
Operations and Algebraic Thinking 8: Determine the unknown whole number in an addition and subtraction equation relating three whole numbers.
- I can use related facts to determine unknown numbers.
- I can use related fact to subtract.
Each day the math block will begin with 15 minutes of Daily Math Review and Mental Math. The focus of DMR should be either prerequisite standard skills or previous chapter concepts that were not mastered. The focus of mental math should be based on the current Chapter’s skills and concepts. Adjust the amount of questions in DMR and MM to fit into the 15 minute time block.
Suggested Chapter Pacing
All lessons are paced for one day, unless otherwise indicated. Teachers may adjust to meet students’ needs.
Launching the Chapter / Pre-Assessment / Review Prerequisite SkillsAct Out Addition!: TE 251I / Show What You Know Assessment
Identify Tier 2 and Tier 3 Groups for Small Group Instruction.
Day Before Lesson 5.1 / Vocabulary Activity
Define and describe Chapter Five vocabulary words. TE 251H, 253, / Vocabulary Builder
Identify students who will need further vocabulary support for Chapter Five. / Preview Chapter Centers
Introduce chapter games, activities, and literature students will be using during center time. / School – Home Letter
Read together and send home.
I Can Statement / Essential Question / Implementation Notes / Centers by Lesson / Teacher Notes
Lesson 5.1
1.OA.1 / I can solve addition and subtraction problem situations using the strategy make a model. / How can making a model help you solve a problem? /
- Problem solving section may take 2 days
- Red & Yellow Connecting Cubes
L: Picture Puzzles
G: Ducky Sums / Click here to enter text.
5.1 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
CountryCountdown: Counting Critters – Level U / Animated Math Model:
None
Lesson 5.2
1.OA.6 / I can record related facts within 20. / How do related facts help you find missing numbers? /
- Red & Blue Connecting Cubes
- Red & Blue Crayons
L: Picture Puzzles
G: Related Facts Race / Click here to enter text.
5.2 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
CountryCountdown: Counting Critters – Level U / Animated Math Model:
Fact Families to 12
Lesson 5.3
1.OA.6 / I can identify related addition and subtraction facts within 20. / How do you know if addition and subtraction facts are related? /
- Red & Blue Connecting Cubes
- Red, Blue & Green Crayons
L: Picture Puzzles
G: Related Facts Race / Click here to enter text.
5.3 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
CountryCountdown: Counting Critters - LevelT / Animated Math Model:
Related Facts to 12
Lesson 5.4
1.OA.6 / I can apply the inverse relationship of addition and subtraction / How can you use addition to check subtraction? / Click here to enter text.
5.4 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
CountryCountdown: Counting Critters – Level U / Animated Math Model:
Relate Addition to Subtraction
Numberopolis: CarnivalStories - LevelN
IceStation Exploration: ArcticAlgebra - LevelA
Lesson 5.5
1.OA.8 / I can use related facts to determine unknown numbers. / How can you use a related fact to find a missing number? /
- Red &Blue Connecting Cubes
- Red & Blue Crayons
L: Juggling
G: Basic Fact Race / Click here to enter text.
5.5 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
CountryCountdown: Counting Critters – Level U / Animated Math Model:
Missing Number
Numberopolis: CarnivalStories - LevelN
IceStation Exploration: ArcticAlgebra - LevelA
Lesson 5.6
1.OA.8 / I can use a related fact to subtract. / How can you use a related fact to find a missing number? /
- Crayons
L: Juggling
G: Related Facts Race / Click here to enter text.
5.6 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
CountryCountdown: Counting Critters – Level U / Animated Math Model:
Missing Number
Numberopolis: CarnivalStories - LevelN
IceStation Exploration: ArcticAlgebra - LevelA
I Can Statement / Essential Question / Implementation Notes / Centers by Lesson / Teacher Notes
Lesson 5.7
1.OA.1 / I can choose an operation and strategy to solve an addition or subtraction word problem. / How do you choose when to add and when to subtract to solve a problem? /
- Two – color counters
- Red & yellow crayons
L: Juggling / Click here to enter text.
5.7 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
Numberopolis,CarnivalStories, Level M / Animated Math Model:
None
Lesson 5.8
1.OA.6 / I can represent equivalent forms of numbers using sums and differences within 20. / How can you add and subtract in different ways to make the same number? /
- May take 2 days.
- Red, Blue, & Yellow connecting cubes
- Red & Blue crayons
L: The Sum in the Same
G: Basic Facts Race / Click here to enter text.
5.8 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
CountryCountdown,Harrison'sComparisons,Level H / Animated Math Model:
Ways toMakeNumbers to20
Lesson 5.9
1.OA.7 / I can determine if an equation is true or false. / How can you decide if a number sentence is true or false? /
- Crayons
L: Juggling
G: Basic Facts Race / Click here to enter text.
5.9 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
CountryCountdown,Harrison'sComparisons,Level H / Animated Math Model:
None
Lesson 5.10
1.OA.6 / I can add and subtract facts within 20 and demonstrate fluency for addition and subtraction within 10. / How can addition and subtraction strategies help you find sums and differences? /
- Two-Color counters
L: Juggling
G: Basic Facts Race / Click here to enter text.
5.10 Technology / Interactive Whiteboard Lesson / Interactive Student Edition (Engage) / Math on the Spot / Mega Math:
CountryCountdown: Counting Critters – Level U / Animated Math Model:
Fact Families to 12
Additional Resources for Chapter 5
Operations in Algebraic Thinking 1 / Operations in Algebraic Thinking 6 / Operations in Algebraic Thinking 7 / Operations in Algebraic Thinking 8
KR: 1:3-10, Grow and Compare, page 158 / Kathy Richardson: 2:2-12, Snap It, page 56-57 / KR: 2:2-12, Snap It, page 56-57
KR: 2:2-27, Building and Rebuilding, p. 98
KR: 2:2-12, Counting Boards: Number Combinations, p. 73
KR: 2:2-22,24,25,26, Number Train Arrangements, page 92-97
KR: 2:2-15, Number Arrangements Using Color Tiles, page 80
KR: 2:3-15, Build-A-Floor Race, p. 133-135
Adding and Subtracting on the Number Line
Unifex Trains / Double Flap Cards
KR: 1:3-13, Stack, Tell, Spin & Win, page 161 -162 / Kathy Richardson: 2:2-27, Building and Rebuilding, p. 98 / Double Flap Number Cards
KR: 1:3-18, Comparing Handfuls, page 168-169 / Kathy Richardson: 2:2-12, Counting Boards: Number Combinations, p. 73 / Addition and Subtraction Puzzles
Kathy Richardson: 2:2-22,24,25,26, Number Train Arrangements, page 92-97 / True or False?
Kathy Richardson: 2:2-15, Number Arrangements Using Color Tiles, page 80
Kathy Richardson: 2:3-15, Build-A-Floor Race, p. 133-135
Des Moines Public Schools 2014-2015 Math Curriculum Guides Page | 1
Grade 1 – Chapter 5