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## Lesson Plan

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This lesson provided by:
 Author: Summer Payne System: Mobile County School: Pearl Haskew Elementary

General Lesson Information
 Lesson Plan ID: 33147 Title: Where Oh Where Has My Addend Gone? Overview/Annotation: Students will use number bonds and counters as a strategy for finding the missing addend. Students will become aware of the relationship between addition and subtraction. They will also use counting as it is related to addition and subtraction.This is a College- and Career-Ready Standards showcase lesson plan.

Associated Standards and Objectives
Content Standard(s):
 MA2015 (1) 3. Apply properties of operations as strategies to add and subtract. (Students need not use formal terms for these properties.) [1-OA3] 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) MA2015 (1) 4. Understand subtraction as an unknown-addend problem. [1-OA4] Example: Subtract 10 - 8 by finding the number that makes 10 when added to 8. MA2015 (1) 5. Relate counting to addition and subtraction (e.g., by counting on 2 to add 2). [1-OA5] MA2015 (1) 8. Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. [1-OA8] MA201001010802.jpg

Local/National Standards:

Primary Learning Objective(s):

The students will solve missing addend problems using different strategies such as number bonds, counting on, and relating addition and subtraction facts. The students will relate counting to addition and subtraction. The students will solve real-world problems involving missing addends.

Preparation Information
 Total Duration: 31 to 60 Minutes Materials and Resources: task cards (attached- some cards are left blank for teacher use)number bond (attached)counters Technology Resources Needed: interactive whiteboard or digital projector (optional)interactive whiteboard file (attached) (optional) Background/Preparation: Students need knowledge of addition and subtraction. Also, this lesson uses a number bond, but students do not have to be familiar with it to complete this lesson. The lesson explains what a number bond is and how it can be used. It is just another strategy to show the relationship between addition and subtraction.

Procedures/Activities: