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National Math + Science Initative

Using Linear Equations to Define Geometric Solids

For Teachers 9th - 12th Standards
Making the transition from two-dimensional shapes to three-dimensional solids can be difficult for many geometry learners. This comprehensive Common Core lesson plan starts with writing and graphing linear equations to define a bounded...
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Lesson Plan
National Security Agency

Awesome Area - Geometry and Measurement

For Teachers 2nd - 4th Standards
Break out those math manipulatives, it's time to teach about area! Capturing the engagement of young mathematicians, this three-lesson series supports children with learning how to measure the area of squares, rectangles, and other...
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PPT
Curated OER

Finding the Perimeter

For Teachers 3rd - 4th
Finding the perimeter of a shape is one of the basic skills for young geometers to master. This presentation does a good job of giving them some practice. Each of the slides has a different shape that they must consider. A good, solid...
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Lesson Plan
Curated OER

PowerPoint on Area - 5th Grade

For Teachers 5th
A nice presentation on how to calculate area awaits your 5th graders. The interactive component is quite good. Learners view a variety of shapes on a grid, calculate the area, and type in what type of polygon it is. Some effective...
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Lesson Plan
Curated OER

Area and Perimeter of Rectangles

For Teachers 3rd - 5th
Discover the difference between area and perimeter. Learners are grouped in twos and threes and each group has one advanced/gifted learner to serve as the peer helper. They receive manipulatives to help them determine the area and...
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Lesson Plan
Curated OER

Finding Perimeter and Area

For Teachers 3rd - 5th
Geometers find the perimeter and area of rectangles. They discuss the definitions and characteristics of rectangles and squares. In groups, they use yarn to discover the perimeter of squares and rectangles. They count cubes to explore...
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Lesson Plan
EngageNY

Perimeter and Area of Polygonal Regions in the Cartesian Plane

For Students 9th - 12th Standards
How many sides does that polygon have? Building directly from lesson number eight in this series, learners now find the area and perimeter of any polygon on the coordinate plane. They decompose the polygons into triangles and use Green's...
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Lesson Plan
Curated OER

The Ins And Outs Of Area And Perimeter

For Teachers 5th
Fifth graders demonstrate the concept of perimeter and area using manipulative. In this area and perimeter lesson, 5th graders explore area and perimeter through the exploration style of teaching using eatable and non-eatable...
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Worksheet
Curated OER

Area and Perimeter

For Students 10th
In this area and perimeter worksheet, 10th graders solve and complete 18 various types of geometry problems. First, they find the area of a figure shown with consecutive sides perpendicular. Then, students find the area and perimeter of...
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Worksheet
Curated OER

Area and Perimeter of Compound Shapes

For Students 7th - 9th
In this geometry activity, learners find the area and perimeter of 6 different compound shapes containing squares, rectangles, triangles, and half circles. 
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Lesson Plan
Curated OER

Area and Perimeter of Regular Polygons - An Extension

For Teachers 9th - 12th Standards
Pupils explore the relationship between area and perimeter of polygons.They measure the area and perimeter of regular polygons inscribed in a circle. Learners then discuss how as the number of sides of a regular polygon increase, the...
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Worksheet
Curated OER

Area and Perimeter of a Rectangle

For Students 5th - 6th
In this online rectangles worksheet, students find the area and perimeter of thirty-nine rectangles. Students check their answers on line as they go and receive their overall score online at the end of the worksheet.
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Worksheet
Curated OER

Area and Perimeter

For Students 10th
For this geometry worksheet, 10th graders are given real world problems dealing with are and perimeter. They solve using the formulas for area and perimeter. There are 3 problems.
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Worksheet
Curated OER

Finding Angles, Volume, Area, and Perimeter

For Students 4th - 6th
Elementary schoolers complete word problems dealing with the different kinds of measurements of different shapes. They solve 10 problems including perimeter, angles, volume, and more.
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Worksheet
Common Core Sheets

Finding Side Length (Given Perimeter)

For Students 3rd Standards
Perimeter is the total distance around an object. One can find the perimeter of a rectangle or square by adding all four side lengths together. These worksheets require third graders to find the missing side length, given the perimeter...
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Lesson Plan
Curated OER

Is There Mystery in Measurement?

For Teachers 3rd - 6th
Investigate perimeter and area of polygons! In this measurement lesson, learners use index cards to create rectangles and trace their hand to estimate its area and perimeter.
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Activity
101 Questions

Circle-Square

For Teachers 9th - 12th Standards
How do the area and perimeters of circles and squares compare? A clever video illustrates the change in the area of a circle and square while their total perimeter stays the same. The task is for learners to predict the point where the...
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Worksheet
Curated OER

Area and Perimeter: Shape Investigation

For Students 5th
In this area and perimeter worksheet, 5th graders draw 10 different shapes depending on the area or perimeter that is required. Grids are provided for students to draw on, and blanks are included for students to write the perimeter and...
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Worksheet
Curated OER

Easy Worksheet: Area and Perimeter of Rectangles and Squares

For Students 9th - 12th
In this area and perimeter of rectangles and squares activity, students solve 6 graphing and short answer problems. Students plot four coordinates of a rectangle or square on the coordinate plane. Students find the area or perimeter of...
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Lesson Plan
Curated OER

Peter's Third String

For Teachers 6th - 9th
Explore the solution to a word problem involving area and perimeter. Learners read and discuss how to approach the problem. In small groups, they determine the maximum area of a rectangle with a given perimeter using a piece of string....
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Assessment
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Mathed Up!

Simple Perimeter, Area, and Volume

For Students 6th - 8th Standards
Young mathematicians find the area and perimeter of shaded shapes on a grid of unit squares. The sheets challenge class members to find the volume of various solid prisms. Each questions also includes the total value of suggest points...
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Lesson Plan
Curated OER

Investigation Designing a Patchwork Quilt

For Teachers 4th
Fourth graders practice calculating area by creating a classroom quilt. Students are given a 6x6 inch square material they design based on a classroom theme. A sample of the class quilt is created using graph paper so students may...
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Lesson Plan
Curated OER

Perimeter All Around

For Teachers 3rd - 5th
Students explore perimeter and area of regular and irregular polygons. They experiment with color squares and create different arrangements using the same number squares. Then they compare the area and perimeter measurements of each.
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Interactive
Curated OER

Area and Perimeter of Rectangles Worksheet (II)

For Students 10th
In this geometry worksheet, 10th graders determine area and perimeter of rectangles, given the width and the length. The one page interactive worksheet contains ten questions. Answers and hints are included. 

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