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Lesson Plan
Curated OER

Maximizing and Minimizing the Area of Rectangles Given a Fixed Perimeter

For Teachers 6th - 9th
Learners explore the realms of measurement. In this math lesson plan, students analyze and solve problems in which rectangles with identical perimeters are compared to maximize or minimize area. This lesson can be extended for algebra,...
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PPT
Curated OER

Calculate the Area of Rectangles

For Teachers 4th - 6th
A wonderful resource just waiting to be used. Provide learners with a complete explanation on how to calculate the area of a rectangle. After this process is covered, they will see how they can use rectangles to calculate the area of...
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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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Assessment
Bowland

Golden Rectangles

For Teachers 6th - 9th
Scholars must determine the maximum area for a rectangular plot of land enclosed with 100 meters of rope. As the work they discover patterns and numerical approaches to solve the problem.
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Assessment
Mathed Up!

Shading Fractions of Rectangles

For Students 3rd - 6th Standards
Learners find the midpoint between two numbers, shade fractional amounts of rectangles as well as decimal amounts of rectangles, and explain their mathematical reasoning in words. The assessment is a great way to check for understanding...
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PPT
Curated OER

Perimeter of Rectangles

For Teachers 5th - 6th
Finding the perimeter of a rectangle is easy, and this presentation gives the formula that makes it so. In this short PowerPoint, learners find the perimeter of a given rectangle, after being coached on how to calculate the measurement....
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Worksheet
Curated OER

The Coordinate Plane

For Students 6th - 8th
Use this Saxon math coordinate plane worksheet to have your learners utilize a graphing calculator, equate the vertices of a rectangle, and then graph their conclusions as well as answer a variety of fill in the blank equations.
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Lesson Plan
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Illustrative Mathematics

Rectangle Perimeter 2

For Teachers 5th - 7th Standards
While this activity is centered around expressions that represent the perimeter of a rectangle, it also hits at the fundamental concept of equivalent expressions, simplifing expressions, and like-terms. Classmates express their...
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Worksheet
Curated OER

Length/Width of a Rectangle

For Students 6th - 8th
In this length and width instructional activity, students find either the length or width of a rectangle with the area and other known measurement given. Students complete 4 problems.
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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.
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Worksheet
Curated OER

Hands On: Construct Triangles and Rectangles

For Students 4th - 7th
In this congruent triangles and rectangles worksheet, students solve 6 word problems where they identify whether triangles and rectangles are congruent, and construct triangles. Students must explain their reasoning and prove each answer.
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Interactive
Curated OER

Area and Perimeter of Rectangles Worksheets (I)

For Students 6th - 12th
In this online math learning exercise, 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!
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Lesson Plan
Curated OER

Perimeter and Area of a Rectangle

For Teachers 6th
Sixth graders fill out worksheets to find the perimeter and area of rectangles. In this perimeter and area lesson plan, 6th graders color in the area and measure the perimeters.
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Worksheet
Curated OER

Geometry: Shapes-Squares, Rectangles and Triangles

For Students 4th - 6th
In this geometry worksheet, students distinguish which of eight shapes are squares, rectangles and/or triangles. Students write the name of each shape on the lines provided.
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Worksheet
Curated OER

Area and Perimeter of Rectangles

For Students 4th - 8th
In this area and perimeter worksheet, students find the area and perimeter of rectangles whose sides are three digit numbers with decimals. Students complete 6 problems.
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Interactive
Curated OER

Four Rectangle Perimeter Problems

For Students 6th - 9th
For this perimeter worksheet, students find the perimeter of four rectangles.  Explanations, examples, and solutions are provided.
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Lesson Plan
Curated OER

Learning by Logic - Total Surface Area

For Teachers 3rd - 6th
Geometers calculate the area of plane surfaces using the formulas for the area of a square, rectangle, and triangle. They develop the formula for calculating the total surface area of two geometric solids: the cube and rectangular prism.
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Worksheet
Curated OER

Math Maven's Mysteries

For Students 5th - 7th
In these math word problem worksheets, students help solve the mystery about 'The Case of the Shifting Shapes.' Students solve the problem by completing a rectangle area problem and also determine where Rex Tangle will appear next.
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Unit Plan
Arizona Department of Education

Area and Perimeter of Regular and Irregular Polygons

For Teachers 3rd - 6th Standards
Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other irregular...
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Worksheet
Curated OER

Perimeter and Area of Rectangles (A)

For Students 4th - 6th
In this perimeter and area worksheet, students calculate the perimeter and area of rectangles that are measured in centimeters containing numbers with decimals. Students complete 4 problems.
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Worksheet
Curated OER

Area of Squares and Rectangles

For Students 5th - 8th
In this math instructional activity, students complete 16 problems where they find the area of squares and rectangles with whole and decimal numbers. This instructional activity would be an excellent homework assignment.
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Lesson Plan
Illustrative Mathematics

Rectangle Perimeter 1

For Teachers 5th - 7th Standards
Creating an expression to represent the perimeter of a rectangle is a fundamental beginning skill in learning how to use and define variables. This activity starts with the basics and can be followed up with additional tasks. 
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Lesson Plan
Illustrative Mathematics

Rectangle Perimeter 3

For Teachers 5th - 7th Standards
This activity looks at writing expressions to represent perimeter of a rectangle and then considers the concept of equivalent expressions and the distributive property in more detail. 
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Lesson Plan
Curated OER

Perimeter and Area 2

For Teachers 5th - 7th
For this calculating area worksheet, students use their problem solving skills and the information provided to find the area of 6 rectangles.

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