Lesson Plan
Curated OER

Finding the Area of an Equilateral Triangle

For Teachers 9th - 11th Standards
The problem seems simple: find the area of the equilateral triangle whose sides are each length 1. In fact, this same problem is solved in 8th grade, addressing a different Common Core standard, using the formula for area of a triangle...
Worksheet
Curated OER

Perimeter

For Students 6th - 7th
In this finding perimeter worksheet, students find the perimeter of each polygon in the first set of problems. Students then write a formula to find each perimeter and solve the second set. Students finish by finding the perimeter for...
Lesson Plan
Curated OER

Study Buddies: Perimeter

For Teachers 4th - 5th
In this math worksheet, students will work with a coach to solve a story problem in which they must find the perimeter of two gardens. Students will follow a step-by-step process and notes are provided for the coach.
Worksheet
Curated OER

Linear Graphs and Equations 5.1

For Students 6th
In these identifying coordinates on a grid, linear graphs, and equations worksheets, 6th graders draw the shapes and letter, complete a table and use it to draw a graph, calculate gradients of lines, determine equations of lines, solve...
Worksheet
Curated OER

Find the Area and Perimeter of a Rectangle (mixed)

For Students 4th - 5th
In this area and perimeter worksheet set, students determine the area and perimeter of 120 rectangles when they are given the length and the width of each. They write the answers with the proper labels.
Worksheet
Curated OER

Find the Side of the Square

For Students 6th - 8th
In this square worksheet, middle schoolers find the length of one side of a square when given the perimeter.  This two-page worksheet contains 5 problems.  Answers are provided on the last page.
Worksheet
Curated OER

Perimeter of a Circle Worksheet

For Students 6th - 8th
In this perimeter of circles worksheet, students find the perimeter of 6 circles given a diameter.  Students find the perimeter in terms of Pi.
Interactive
Curated OER

Area and Perimeter of Rectangles Worksheets (I)

For Students 6th - 12th
In this online math worksheet, students find the area and perimeter of rectangles. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching tool!
Worksheet
Curated OER

Perimeter of Squares Worksheet

For Students 6th - 8th
In this perimeter of squares worksheet, students find the perimeter of given shapes.  This one-page worksheet contains 6 problems.  Answers are provided on the last page.
Worksheet
Curated OER

Perimeter of Rectangles

For Students 3rd - 8th
For this perimeter worksheet, students find the perimeter of 4 rectangles.  Students find the perimeter given sketches of each rectangle with two sides labeled.
Worksheet
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Perimeter of Circle Worksheet

For Students 6th - 9th
For this perimeter worksheet, students find the perimeter of a circle.  This two-page worksheet contains 4 problems.  Answers are provided on the last page.
Worksheet
Curated OER

Area and Perimeter of Triangles

For Students 5th - 6th
In this area/perimeter worksheet, students find perimeter and area of 6 given triangles. An answer key is included on page 2.
Worksheet
Curated OER

Perimeter and Area 2

For Students 4th - 6th
For this calculating perimeter worksheet, students use their problem solving skills and the information provided to find the perimeter of 6 squares and rectangles.
Worksheet
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Area and Perimeter

For Students 10th
In 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.
Worksheet
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Perimeter and Area of Rectangles (B)

For Students 4th - 5th
For this calculating perimeter and area worksheet, students find the dimensions of metric rectangles with decimals. Students solve 4 problems.
Worksheet
Curated OER

Finding The Area

For Students 9th - 11th
In this geometry worksheet, students calculate the area of a given shape. They use the formulas for squares and circles to help them find the area. There are 2 questions with an answer key.
Worksheet
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Calculating Perimeter 3

For Students 5th - 7th
In this calculating perimeter worksheet, students examine 8 rectangles and use the information provided to find the perimeter of each of them.
Worksheet
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Perimeter and Area

For Students 3rd - 4th
In this perimeter worksheet, students solve 6 problems in which the perimeter of quadrilaterals is calculated. No examples are provided on the page.
Worksheet
Curated OER

Perimeter, Area and Volume

For Students 7th - 8th
In this perimeter worksheet, students find the perimeter, area, and volume of given rectangles.  This one-page worksheet contains examples and two problems. 
Worksheet
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Perimeter of Regular Polygon

For Students 5th - 7th
In this perimeter instructional activity, students find the perimeter of five regular polygons. The dimension of one side is given.
Worksheet
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Perimeter and Area

For Students 3rd - 6th
In this perimeter and area worksheet, students find the perimeter and area of squares and rectangles. Students complete 9 problems total.
Worksheet
Curated OER

Perimeter and Area

For Students 4th - 6th
In this perimeter/area instructional activity, students find area and perimeter for a set of 9 shapes. A website reference is included for additional resources.
Worksheet
Curated OER

Perimeter and Area #3

For Students 4th - 6th
In this perimeter and area learning exercise, students find each for a set of 9 given shapes. A website reference for additional activities is given.
Assessment
Noyce Foundation

Parallelogram

For Teachers 6th - 7th Standards
Parallelograms are pairs of triangles all the way around. Pupils measure to determine the area and perimeter of a parallelogram. They then find the area of the tirangles formed by drawing a diagonal of the parallelogram and compare their...

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