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• MCCRS.Math.Content.3.MD.C.7d - Recognize area as additive. Find areas of rectilinear figures by decom...
• MCCRS.Math.Content.3.MD.C.7d - Recognize area as additive. Find areas of rectilinear figures by decom...
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This task requires students to find the area of a rectilinear figure and model their thinking through multiple equations. This task relates to the Common Core State Standards: 3.MD.C.7d and 3.OA.D.8.

Subject:
Education
Mathematics
Material Type:
Activity/Lab
Assessment
Homework/Assignment
08/09/2018
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CC BY-NC-SA
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This is a concrete referent reasoning task for Grade 3. Students need to use the diagram to find the information to find the area of a rectilinear figure. This is a task that would be a good starting point for solving problems for this standard.

Subject:
Education
Elementary Education
Mathematics
Material Type:
Activity/Lab
08/13/2018
Unrestricted Use
CC BY
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This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Find the area of each colored figure. Each grid square is 1 inch long....

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
05/27/2013
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CC BY-SA
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This resource links to both Measurement & Data progression documents published by the Common Core Writing Teams in June 2011.

Material Type:
Assessment
Homework/Assignment
Teaching/Learning Strategy
05/09/2013
Unrestricted Use
CC BY
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Subject:
Mathematics
Material Type:
Assessment
Homework/Assignment
Lesson Plan
04/25/2014
Unrestricted Use
CC BY
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This task presents students with some creative geometric ways to represent the fraction one half. The goal is both to appeal to students' visual intuition while also providing a hands on activity to decide whether or not two areas are equal.

Subject:
Geometry
Mathematics
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
10/01/2012
Unrestricted Use
CC BY
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This is a rectangle subdivision task; ideally instead of counting each square. students should break the letters into rectangles, multiply to find the areas, and add up the areas. However, students should not be discouraged from using individual counting to start if they are stuck. Often students will get tired of counting and devise the shortcut method themselves.

Subject:
Mathematics
Measurement and Data
Material Type:
Activity/Lab
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics