Structures of Addition and Subtraction Problems

Structures of Addition and Subtraction Problems
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1 MB|17 pages
Product Description
It's no secret that students have a hard time with word problems. They can know how to add and subtract fluently, but if they can't choose the correct operation in a word problem, then they're sunk.

The problem is that we typically only teach the most basic addition and subtraction structures: joining to find the total and taking away to find what's left.

Did you know there are ELEVEN different structures for addition and subtraction problems? This unit includes a chart describing all the structures and 12 story mats using 4 different scenarios (3 mats for each scenario) with sentence frames to help your kiddos understand the different structures in a very concrete way. Examples of each of the 11 structures are included to help guide your instruction.

Common Core Alignment
K.OA.1- represent addition and subtraction with objects, fingers, mental images, etc.
K.OA.2-solve addition and subtraction word problems, and add and subtract within 10
1.OA.1-use addition and subtraction within 20 to solve word problems involving situation of adding to, taking from, putting together, taking apart, and comparing, with unknown in all positions
1.OA.8-determine the unknown whole number in an addition of subtraction equation relating three whole numbers. (eg. 8 + ? = 11)

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Copyright © Donna Boucher. All rights reserved by author. This product is to be used by the original downloader only. Copying for more than one teacher, classroom, department, school, or school system is prohibited. This product may not be distributed or displayed digitally for public view. Failure to comply is a copyright infringement and a violation of the Digital Millennium Copyright Act (DMCA). Clipart and elements found in this PDF are copyrighted and cannot be extracted and used outside of this file without permission or license. Intended for classroom and personal use ONLY.

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17 pages
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