This Common Core aligned interactive SMART Board lesson gets young students in K & 1 thinking about the subtraction process through hands-on manipulation and vocabulary use. Lesson includes a create your own subtraction story slide, word problems, writing in math using pictures and words, interactive manipulatives, subtraction sentences, a subtraction vortex game, interactive subtraction sentence bars, interactive flash cards, and a test prep slide.
HOME SCHOOL USERS: Use the SMART Interactive Viewer
(a FREE SMART Technologies application that will allow you to view and use this file).
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Common Core State Standards Addressed:
Operations & Algebraic Thinking K.OA.1, 1.OA.1
Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.
1. Represent addition and subtraction with objects, fingers, mental images, drawings 1, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
1 Drawings need not show details, but should show the mathematics in the problem. (This applies wherever drawings are mentioned in the Standards.)
Represent and solve problems involving addition and subtraction.
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, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem