3rd Grade Math - Additive Property of Area
- Aaron Daffern
- May 13, 2021
- 1 min read
Updated: Dec 28, 2023
This post explains and gives practice opportunities related to TEKS 3.6D:
decompose composite figures formed by rectangles into non-overlapping rectangles to determine the area of the original figure using the additive property of area
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Instruction
Area of rectangles is an additive property, which means that the total area of two adjacent, non-overlapping rectangles is the sum of each of their separate areas. Here's a video showing just what that means.
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STAAR Practice
Between 2016 and 2024, this supporting standard has been tested 2 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these questions, click here. The videos below are linked to the questions in the quiz as answer explanations after the quiz is submitted.
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To view all the posts in this 3rd grade TEKS review series, click here.