Exploring the Doubles Strategy for Addition and Subtraction

Grade Levels
K - 2nd
Formats Included
  • PDF
22 pages
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In recent years there has been a huge shift away from rote memorization of math facts and toward a strategy-based approach for learning math facts. There's a big difference between memorizing and understanding. The activities in this unit focus on learning doubles.


• Mini lesson for introducing doubles and creating an anchor chart
• Two board games with instructions and recording sheets--one for doubles and one for halves
• Flash cards with ten-frame representation on one side and the fact on the other
• Two sets of dominoes--one with just numerals and one with a mix of pictorial and numerals
• Fact family workstation with mat, cards, and recording sheet

Common Core Alignment
1.OA.3--Apply properties of operations as strategies to add and subtract
1.OA.4--Understand subtraction as an unknown-addend problem
2.OA.2--Fluently add and subtract within 20 using mental strategies; by the end of Grade 2, know from memory all sums of two one-digit numbers

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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.

Total Pages
22 pages
Answer Key
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