SALTA 1st grade

Focus

Standards

Curriculum Supports – enVision 2020

Vocabulary

Strand: Operations and Algebraic Thinking First grade students will work with addition and subtraction equations.

1.OA.1 1.OA.2 1.OA.3 1.OA.7 1.OA.8

Topic 5: Work with Addition and Subtraction Equations Pick a Project • Nuts for Nuts! • Phases of the Moon • Check Out Checkers

Topic 5:

No new vocabulary words

Standard 1.OA.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. For example, use objects, drawings, and equations with a symbol for the unknown number to represent he problem. Standard 1.OA.2 Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20. For example, use objects, drawings, and equations with a symbol for the unknown number to represent the problem. Standard 1.OA.3 Apply properties of operations as strategies to add and subtract. For example: 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.) First grade students need not use formal terms for these properties. Standard 1.OA.7 Understand the meaning of the equal sign, and determine whether 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 Standard 1.OA.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 = ?

Review as needed

5-1 Find The Unknown Numbers 5-2 True Or False Equations

5-3 Make True Equations 5-4 Add Three Numbers 5-5 Word Problems with Three Addends 3-ACT MATH: Weighed Down 5-6 Solve Addition and Subtraction Word Problems 5-7 Problem Solving: Precision

Topic 5 Manipulatives • Counters • Bar Model • Number Cards •

Connecting Cubes

Assessment Options: Topic 5 Assessment – Work with Addition and Subtraction Equations (print or online) Topic 5 Performance Assessment – Work with Addition and Subtraction Equations Team Created Assessment Assessment Tasks – Topic 5 Procedural Check

Application Task

1.OA.1

Solve: ? + 5 = 14 13 - ? = 7 4 + ? = 12 5 – 3 = ? (DOK 2)

Circle to show if each number sentence is true or false and complete the sentence.

6 + 8 = 13 true false because ______________________________.

12 – 7 = 6 true false because ______________________________. (DOK 2)

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