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## Operations and Algebraic Thinking Unit

PROGRESSIVE MATHEMATICS INITIATIVE® (PMI®)

This section links together the PMI units that cover the Common Core Domain OA (Operations and Algebraic Thinking). It also lists the sections in each unit, along with the Common Core Standards covered.

Operations & Algebraic Thinking - Kindergarten
• Exploring Addition K.OA.1 & K.OA.2
• Plus Symbol K.OA.1
• Equal Sign K.OA.1
• Tally Marks K.OA.1
• Counting On K.OA.1
• Word Problems K.OA.2
• More Than One Way K.OA.3
• Number Facts to 5 K.OA.1
• Exploring Subtraction K.OA.1 & K.OA.2
• Word Problems K.OA.2
• Modeling Subtraction K.OA.1
• Equal Sign K.OA.1
• Connecting Cubes K.OA.1
• Vertical Subtraction K.OA.1
• Number Facts to 5 K.OA.1
• Addition and Subtraction Games K.OA.1
• Addition and Subtraction Problem Solving K.OA.1 & K.OA.2

Numbers to 120 – First Grade
• Skip Counting by 2 - 1.OA.5
• Skip Counting by 5 – 1.OA.5

• Real World Addition with Counters 1.OA.1
• Addition Models with Cubes 1.OA.1
• Number Stories 1.OA.1
• Addition on a Number Line 1.OA.3
• Addition on a Number Grid 1.OA.3
• Adding Ten on a Number Line 1.OA.3
• Patterns when Adding 10 1.OA.3
• Doubles 1.OA.3
• Doubles Plus One 1.OA.3
• Turn Around Facts 1.OA.3
• Making Ten with Frames 1.OA.6
• Making Ten with Hands 1.OA.6
• Missing Addends with a Number Grid 1.OA.4

• Real World Subtraction with Counters 1.OA.1
• Subtraction Models with Cubes 1.OA.1
• Subtraction Sentences 1.OA.1
• Number Stories 1.OA.1
• Subtraction on a Number Line 1.OA.3
• Subtraction on a Number Grid 1.OA.3
• Subtracting Zero 1.OA.1
• Subtracting All 1.OA.1
• Subtracting One 1.OA.1
• Subtracting Ten 1.OA.6
• Patterns when Subtracting 10 1.OA.6
• Fact Families 1.OA.3
• Fact Triangles 1.OA.3
• Missing Number 1.OA.8
• Get to Ten 1.OA.6

• Odd and Even Numbers 2.OA.3

• Recall from Memory 2.OA.2

• Mentally Adding and Subtracting 10 and 100 – 2.OA.1

• Relate Addition to Multiplication 3.OA.1
• Arrays 3.OA.1
• Multiply by 1 and 0 - 3.OA.7
• Multiply by 2 - 3.OA.7
• Multiply by 5 - 3.OA.7
• Multiply by 10 - 3.OA.7
• Multiply Table Activity 3.OA.7
• Multiply by 3 - 3.OA.7
• Multiply by 4 - 3.OA.7
• Multiply by 6 - 3.OA.7
• Multiply by 7 - 3.OA.7
• Multiply by 8 - 3.OA.7
• Multiply by 9 - 3.OA.7

• Arrays and Pictures 3.OA.2 & 3.OA.3
• Using Multiplication 3.OA.4
• Dividing by 1 - 3.OA.2 & 3.OA.3
• Dividing by 2 - 3.OA.2 & 3.OA.3
• Dividing by 3 - 3.OA.2 & 3.OA.3
• Dividing by 4 - 3.OA.2 & 3.OA.3
• Dividing by 5 - 3.OA.2 & 3.OA.3
• Dividing by 6 - 3.OA.2 & 3.OA.3
• Dividing by 7 - 3.OA.2 & 3.OA.3
• Dividing by 8 - 3.OA.2 & 3.OA.3
• Dividing by 9 - 3.OA.2 & 3.OA.3
• Division Word Problems 3.OA.3

Number Sense & Algebraic Concepts – Fourth Grade
• Patterns 4.OA.5

Multiplication & Division Relationship – Fourth Grade
• Multiplication Review 4.OA.1
• Prime and Composite 4.OA.4
• Factors and Multiples 4.OA.4
• Inverse Operations 4.OA.1
• Use Rounding to Estimate Products 4.OA.3
• Use Rounding to Estimate Quotients 4.OA.3