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Finding the Area of Polygons ActivityFinding the Area of Polygons Activity
Publisher
Curated OER
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
3rd
Subjects
Math
1 more...
Resource Types
Activities & Projects
2 more...
Audience
For Teacher Use
Duration
45 mins
Instructional Strategies
Modeling
1 more...
Usage Permissions
Creative Commons
BY-NC-SA: 4.0
cc
Activity

Finding the Area of Polygons

Curated and Reviewed by Lesson Planet
This Finding the Area of Polygons activity also includes:
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Third graders are exposed to finding the area of polygons by decomposing figures and recomposing them into rectangles. This strategy allows children to expand on their prior knowledge of constructing shapes by rearranging parts into squares. 

321 Views 208 Downloads
CCSS: Designed

Concepts

area, area of polygons

Additional Tags

math

Instructional Ideas

  • Ideal for using as a guided practice in order to establish connections between composing shapes and finding their areas

Pros

  • Incorporates simple and challenging figures
  • Includes solution page

Cons

  • None

Common Core

3.MD.C.6 3.MD.C.7.a 3.MD.C.7.d MP1 MP2 MP5 MP7

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Assessment

Area and Perimeter

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Get third graders excited to work find area and perimeter of unit squares, rectangles, and irregular shapes. A 36-page packet comes with task cards, graphic organizers, practice worksheets, printables with squares, exit tickets, and word...
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Lesson Plan

Areas and Volumes - 2D Shapes

Government of Hong Kong
Unfortunately for young mathematicians, the world isn't made entirely of parallelograms, triangles, and trapezoids. After first learning the area formulas for these common shapes, students apply this new knowledge to...
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PPT

Who Wants to Be a Champion: Perimeter, Area, Symmetry

Curated OER
Have your learners practice finding the perimeter and area of geometric shapes using this resource. While just a simple review, this could be a wonderful way to solidify the concepts in their minds.
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Worksheet

Finding Area by Tiling

Common Core Sheets
Third graders find area by tiling a rectangle based on the given side lengths. This helps learners visualize and create the area of a figure. From here, they can count the total number of tiles inside the rectangle to find the answer.
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Lesson Plan

Measurement: Finding Areas of Rectangles

Curated OER
Gardening geometers construct the formula for the area of a rectangle by viewing a video revolving around two young people, their lawn mowing business, and their need to charge by the square meter. A relevant real-life application lesson!
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Unit Plan

Khan Academy: Decompose Figures to Find Area 1

Khan Academy
Practice decomposing figures into rectangles to find area. Some figures are on grids. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. CCSS.Math.Content.3.MD.C.7.d...
2nd - 4th Math
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Lesson Planet Article

Area and Perimeter Activities

Curated OER
Read this article before you begin teaching geometry! It gives teachers some insight into the world of teaching geometry to young learners, and four area and perimeter lessons are attached. 
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Lesson Plan

Multiplication and Areas

Curated OER
Upper graders solve problems involving measurement of squares and rectangles to practice multiplication skills, finding area, and calculating prices and percentages. A performance assessment is included.
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Interactive

Shodor Interactivate: Area (Elementary)

Shodor Education Foundation
In this lesson students will practice finding the area of rectangular shapes and irregular shapes with right angles and understand why the area formula works for rectangular shapes. CCSS.Math.Content.3.MD.C.5.b A plane figure which can...
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Instructional Video

Learn Zillion: Find the Area of a Shape Using a Key to Find the Unit of Measure

Imagine Learning Classroom
In this lesson, you will learn how to find the area of a shape by using a key to find the unit of measure. [3:09]
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CCSS: Designed
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