# ALEX Lesson Plan

## Adding with the Associative Property

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This lesson provided by:
 Author: Whittany Nolen System: Lanett City School: Lanett City Board Of Education
General Lesson Information
 Lesson Plan ID: 32730 Title: Adding with the Associative Property Overview/Annotation: Students will learn ways to add using the associative property of addition. Students will view a PowerPoint presentation to introduce associative property of addition.
Associated Standards and Objectives
Content Standard(s):
 Mathematics MA2019 (2019) Grade: 1 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 and third numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12 (associative property of addition).When adding 0 to a number, the result is the same number (identity property of zero for addition). Unpacked Content Evidence Of Student Attainment:Students: Use informal language of properties to justify their sums and differences ("I already figured out that 8 + 3 = 11, and 3 + 8 is just the turn around of that so it must be 11, too.").Teacher Vocabulary:Commutative property of addition Associative property of addition Identity property of zero for additionKnowledge:Students know: addition and subtraction strategies. how to form an equation. li>how the commutative property works.Skills:Students are able to: Strategically apply properties of addition in order to find sums.Understanding:Students understand that: the order in which addends are joined doesn't change the sum. numbers may be composed or decomposed in a variety of ways.Diverse Learning Needs: Essential Skills:Learning Objectives: M.1.3.1: Define addition and subtraction. M.1.3.2: Recognize properties of operations. M.1.3.3: Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1). M.1.3.4: Apply signs +, -, = to actions of joining and separating sets. M 1.3.5: Identify fact families to ten. M.1.3.6: Recognize the value of zero. Prior Knowledge Skills:Decompose numbers up to 5 using objects or drawings. Compose numbers up to 5 using objects or drawings. Count backward from 5. Count forward to 5. Write numerals from 0 to 10. Represent a given numeral 1 to 10 with objects or drawings. Count forward from a given number 1 to 10. Model joining sets of objects to total 10. Identify plus, minus, and equal signs. Match numerals to objects or drawings. Identify numerals 1 to 10. Count 0 to 10. Add and subtract numbers within 20 using objects, pictures and fingers. Understand key words in addition and subtraction word problems. Examples: all together, how many more, how many are left, in all. Represent numbers with objects or drawings. Separate sets with nine or fewer objects. Combine objects to form sets up to nine. Count items in a set up to twenty. Establish one-to-one correspondence between numbers and objects. Using counting, find one less than a number 2 through 20. Alabama Alternate Achievement Standards AAS Standard: M.AAS.1.3 Demonstrate "putting together" two sets of objects to solve the problem. Mathematics MA2019 (2019) Grade: 1 6. Add and subtract within 20. a. Demonstrate fluency with addition and subtraction facts with sums or differences to 10 by counting on. b. Demonstrate fluency with addition and subtraction facts with sums or differences to 10 by making ten. c. Demonstrate fluency with addition and subtraction facts with sums or differences to 10 by decomposing a number leading to a ten. Example: 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9 d. Demonstrate fluency with addition and subtraction facts with sums or differences to 10 by using the relationship between addition and subtraction. Example: Knowing that 8 + 4 = 12, one knows 12 - 8 = 4. e. Demonstrate fluency with addition and subtraction facts with sums or differences to 10 by creating equivalent but easier or known sums. Example: adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13 Unpacked Content Evidence Of Student Attainment:Students: Use an efficient strategy (e.g., recall, doubles, counting on 1 or 2, close to doubles) to add numbers within 20. Fluently add and subtract within 10.Teacher Vocabulary:FluencyKnowledge:Students know: Strategies for finding sums and differences within 20.Skills:Students are able to: Use addition and subtraction strategies.Understanding:Students understand that: Addition and subtraction strategies can be used to compute sums and differences, and how. Diverse Learning Needs: Essential Skills:Learning Objectives: M.1.6.1: Decompose numbers less than or equal to 10. M.1.6.2: Add and subtract within 5. M.1.6.3: Count forward and backward from a given number. M.1.6.4: Represent addition and subtraction with objects, fingers, mental images, drawings, sounds, acting out situations, verbal explanations, expressions, or equations. Prior Knowledge Skills:Identify plus, minus, and equal signs. Match numerals to objects or drawings. Identify numerals 0 to 10. Count 0 to 10. Understand key words in addition and subtraction word problems. Examples: all together, how many more, how many are left, in all. Represent numbers with objects or drawings. Separate sets with nine or fewer objects. Combine objects to form sets up to nine. Define addition as combining groups of objects. Define subtraction as separating groups of objects. Represent numbers with objects or drawings. Separate sets with nine or fewer objects. Combine objects to form sets up to nine. Add and subtract numbers within 10 using objects, pictures and fingers. Pair "taking away" with subtraction. Take a smaller set out of a larger set. Pair putting together with adding. Combine two sets to make a larger set up to twenty. Separate from a larger group to make 2 smaller groups. Count items in a set up to twenty. Alabama Alternate Achievement Standards AAS Standard: M.AAS.1.6 Add and subtract numbers 1 to 15 using objects, pictures, and fingers.

Local/National Standards:

1. Count with understanding and recognize "how many" sets are in an object.

2. Develop and use strategies for whole-number computations, with a focus on addition and subtraction.

3. Use a variety of methods and tools to compute, including objects, mental computation, estimation, paper and pencil, and calculators.

Primary Learning Objective(s):

Students will solve 3 addend addition problems by using the associative property.

1. Student will work in small cooperative groups of 2-4.
2. Students will respond to and create questions appropriate to the concept being taught.
Preparation Information
 Total Duration: 31 to 60 Minutes Materials and Resources: 1. Pencils and crayons2. Two-sided counters3. Math journals (one per child)4. Dry-erase board and markers for teacher5. Bear Counters (red, blue, & green)6. Vocabulary cards (addend, sum, commutative property, & associative property) Technology Resources Needed: ComputerInternet accessDocument cameraProjector and screenPromethean Flipchart Viewer Software (if you are not a Promethean Board user.) Background/Preparation: Students must have a general understanding of number sense and adding numbers or set objects. Students also must have previously mastered the commutative property of addition.
Procedures/Activities: