My 2nd grade teachers swear by this unit!!
If you are apprehensive about teaching subtraction with regrouping, this is the product for you!! Complete unit for introducing subtraction of two-digit numbers with regrouping.
Two scripted mini-lessons utilizing place value mats to lead students through the concrete (manipulatives), representational (model), and abstract (algorithm) stages for subtraction with regrouping. Includes instruction on problem solving and recognizing the different types of subtraction (take-away, missing part, comparison).
A reproducible flowchart chart to give students as a reminder of when and how to regrouup.
A workstation for students to practice new skills independently. Includes student instructions and recording sheet.
Common Core Alignment
2.NBT.1--Understand that the three digits of a three-digit number represent amounts of hundred, tens, and ones
2.NBT.5--Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction
2.NBT-9--Explain why addition and subtraction strategies work, using place value and the properties of operations
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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.