Operations &Algebraic Thinking (OA) Represent
and solve problems involving addition and subtraction. CCSS.MATH.CONTENT.1.OA.A.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.^{1} CCSS.MATH.CONTENT.1.OA.A.2
Solve
word problems that call for addition of three whole numbers whose sum is less
than or equal to 20, e.g., by using objects, drawings, and equations with a
symbol for the unknown number to represent the problem. Understand
and apply properties of operations and the relationship between addition and
subtraction. CCSS.MATH.CONTENT.1.OA.B.3
Apply
properties of operations as strategies to add and subtract.^{2} Examples: If
8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of
addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten,
so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.) CCSS.MATH.CONTENT.1.OA.B.4
Understand
subtraction as an unknownaddend problem. For example, subtract 10  8
by finding the number that makes 10 when added to 8. Add and
subtract within 20. CCSS.MATH.CONTENT.1.OA.C.5
Relate
counting to addition and subtraction (e.g., by counting on 2 to add 2). CCSS.MATH.CONTENT.1.OA.C.6
Add
and subtract within 20, demonstrating fluency for addition and subtraction
within 10. Use strategies such as counting on; making 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). Work with
addition and subtraction equations. CCSS.MATH.CONTENT.1.OA.D.7
Understand
the meaning of the equal sign, and determine if equations involving addition
and subtraction are true or false. For example, which of the following
equations are true and which are false? 6 = 6, 7 = 8  1, 5 + 2 = 2 + 5, 4 + 1
= 5 + 2.
CCSS.MATH.CONTENT.1.OA.D.8
Determine
the unknown whole number in an addition or subtraction equation relating three
whole numbers. For example, determine the unknown number that makes the
equation true in each of the equations 8 + ? = 11, 5 = _  3, 6 + 6 = _.
Operations & Algebraic Thinking

CCSS

EDM Lessons

EDM Assessment
Part A

Unit Assessment

NJ MODEL UNIT

Benchmark MP

1.OA.1

1.5, 1.13, 2.6, 2.7, 2.8, 2.11, 2.12, 2.13,
3.6, 3.1, 3.12, 2.13, 3.6, 3.11, 3.12, 3.13, 3.14, 4.3, 4.6, 4.7, 4.9, 5.5,
5.6, 5.7, 5.8, 5.10, 6.3, 6.9, 6.10, 10.3, 10.4, Project 8

2,3,4,5,6,8

Unit 21 Unit 22 Bench MP2 Unit 41 Bench MP4

2,4,5

2,4

1.OA.2

2.13, 3.10, 8.4

3,6,7,8,9

Unit 22 Bench MP2

2

2

1.OA.3

2.13, 3.10, 4.11, 4.12, 5.5, 5.8, 5.11, 5.12,
5.13, 6.1, 6.3, 6.4

7,8

Unit 21 Unit 22 Bench MP2

1

2

1.OA.4

2.13, 4.11,
5.7, 5.8, 6.3, 6.5, 8.5, 10.4

6,10

Unit 12 Bench MP1

1

1

1.OA.5

2.11, 2.13,
3.6, 3.8, 3.9, 3.10, 6.3, 6.8, 8.5

1,2,3,4

Unit 11 Unit 12 Bench MP1

1

1

1.OA.6

1.5, 1.10, 1.13, 2.1, 2.2, 2.3, 2.8, 2.11,
2.12, 2.13, 3.6, 3.9, 3.14, 4.2, 4.6, 4.7, 4.8, 4.11, 4.12, 5.5, 5.7, 5.9,
5.10, 5.11, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 7.1, 7.2, 7.3, 7.7, 8.2,
8.3, 8.5, 8.7, 8.8, 8.9, 9.1, 9.6, 9.7, 10.2

2,3,4,5,6,7,8,9,10

Unit 22 Bench MP2

1,4,5

2

1.OA.7

2.11, 3.6,
4.12, 5.3, 5.10, 6.2, 8.2

7,9,10

Unit 12 Bench MP1

2

1

1.OA.8

3.8, 3.9,
4.11, 4.12, 5.8, 5.10, 5.11, 5.12, 5.13, 6.3, 6.4, 6.5, 6.6, 6.8

10

Bench MP1

2

1

Operations & Algebraic Thinking (OA) 1.OA.3  1.OA.B.3 Apply properties of operations as strategies to add and subtract. Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)  Watch This Video  Videos for this standard are coming soon to Khan Academy.
Fact Triangle
Fact Family 3 + 4 = 7 4 + 3 = 7 7 – 4 = 3 7 – 3 = 4
Do these activities: KHAN ACADEMY 1.OA.B.3 ACTIVITIES (Coming Soon) 


Operations & Algebraic Thinking (OA) 1.OA.5  1.OA.C.5 Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).  Khan Academy: Add and subtract within 20. Watch This Video  Skills for this standard are coming soon to Khan Academy.
Do these activities: KHAN ACADEMY 1.OA.C.5 ACTIVITIES (Coming Soon) 
 Operations & Algebraic Thinking (OA) 1.OA.C5 IXL Activities 


Operations & Algebraic Thinking (OA) 1.OA.6  1.OA.6 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making 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).  Watch This Video  Addition and Subtraction Within 20  Early Math  Khan Academy 
 Operations & Algebraic Thinking (OA) 1.OA.C6 IXL Activities  

Operations and Algebraic Thinking (OA) Games  Represent and solve problems involving addition and subtraction. Understand and apply properties of operations and the relationship between addition and subtraction. Add and subtract within 20. Work with addition and subtraction equations. Addition Games  Number Bonds 10 (Easy) Combine number balls to make sums of 10.
 Number Bonds 20 (Medium) Combine number balls to make sums of 20.
 Number Bonds 30 (MediumChallenging) Combine number balls to make sums of 30.
 Number Bonds 40 (Challenging) Combine number balls to make sums of 40.
 Alien Addition Practice sums and addition facts in this exciting math game.
 Jet Ski Addition Practice sums within 20 and addition facts.
 Tug Team Addition Practice sums within 20 and addition facts with this funfilled math game.  Math Monster Addition Choose one or more addends. Can you make all 12 monster friends appear?  Zogs and Monsters Addition Move the friendly zogs to the correct sums without being captured.  Puzzle Pics Addition Choose a target sum (10 to 20) to practice. Place the puzzle piece on the number in the grid. .  Kitten Match Addition Practice sums of 10and addition facts by clicking two fur balls that make 10.  Canoe Puppies Addition (Challenging) Add twodigit numbers correctly to win the race.
 Subtraction Games  Island Chase Practice subtraction facts (within 20) with a fun math game in a tropical setting.
 Sailboat Tug Practice subtraction facts (within 20) with a fun math game in a tropical setting.
 Math Monster Subtraction Choose one or more numbers to subtract. Can you make all 12 monster friends appear?  Ducky Race Subtraction (Challenging) Practice subtraction facts in a duck racing math game. (Positive and Negative Numbers)
 Minus Mission (Challenging) Practice subtraction facts with a spacethemed math game.
 Puzzle Pics Subtraction Choose the largest starting number (10 to 20). Place the puzzle piece on the missing number in the grid. 


