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Lesson Plan
Center for Mathematics and Technology

Whole Numbers: Using an Area Model to Explain Multiplication

For Teachers 3rd - 4th Standards
There are many ways to work through a multiplication problem. Using an area model, kids complete several worksheets with different types of multiplication problems, including multiplying by ten, and explain how the new strategies differ...
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Interactive
CK-12 Foundation

Factor Polynomials Using Special Products: Difference of Two Squares

For Students 9th - 11th Standards
Factoring patterns are not magic! Show your classes how to model the difference of two squares' factors using an area model. Learners manipulate the width and length of two squares to represent the polynomial a^2-b^2. They use the model...
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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
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Utah Education Network (UEN)

Insides and Outsides

For Teachers 4th - 6th Standards
Give small groups handfuls of unit cubes and then dare them to build as many rectangular prisms as possible using only 12 cubes. This engaging activity serves as an introduction to the volume of solid figures. In addition to volume,...
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Lesson Plan
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Curated OER

Halves, Thirds, and Sixths

For Teachers 2nd - 4th Standards
An excellent activity that effectively pulls together the concepts of area, fractions, and equivalent fractions! Using 3x2 rectangular arrays, 3rd graders are introduced to the concept of area in terms of square units. Building on this...
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PPT
Curated OER

Multiplication Facts up to 10 X 10

For Teachers 4th - 5th
Here is a presentation that's chock full of great tips on how to memorize multiplication facts, and how to calculate the area of shapes that aren't perfect squares or rectangles. Many good problems are in each of the slides. A great...
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Lesson Plan
Alabama Learning Exchange

How Big Can a Bee Be?

For Teachers 7th - 10th Standards
Mathematicians analyze the relationships between surface area and volume. They conduct Internet research, conduct various experiments, record the data in a spreadsheet, and graph the results and compare the rate of increase of surface...
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Lesson Plan
Curated OER

Is That Measurement Stuff For Real, Life?

For Teachers 5th - 6th
Fifth and sixth graders engage in a series of activities which show them the importance of using different types of measurement strategies. One of the primary goals of the lesson is to show learners that measurement is helpful in many...
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Worksheet
Curated OER

Area of Squares and Rectangles

For Students 5th - 6th
In this area worksheet, students calculate the area of 3 squares and 3 rectangles. A reference web site is given for additional activities.
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Lesson Plan
Curated OER

Flip's Flag

For Teachers 5th
Fifth graders apply the symmetry and angle properties of polygons and use fractions to express the relationships between the areas of rectangles, squares, and triangles. They analyze various country flags and develop mathematical...
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Interactive
Curated OER

Triangle Problems-Base, Height, and Area

For Students 10th
In this geometry worksheet, 10th graders find the base, height, or area of a triangle. The one page interactive worksheet contains ten questions. Answers and hints are included. 
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Lesson Plan
Curated OER

Measuring the Area of Polygons

For Teachers 4th
Fourth graders use pattern blocks to explore areas of polygons. They explain that the answers to the area of the same polygon vary according to the units of measurement used. They visualize how different units of measurement can be used...
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Worksheet
Math Mammoth

Finding the Area of Rectangles, Parallelograms, and Triangles

For Students 9th
In this area of polygons activity, 9th graders solve two area of rectangles, one area of parallelogram, and ten area of triangles problems.  The formulas for finding the area of these figures are provided.
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Lesson Plan
Curated OER

Lesson 9-3 Practice B: Composite Figures

For Teachers 9th - 12th
In this composite figures worksheet, students solve 11 short answer problems. Students find the area of figures composed of various polygons. Students find the area of each figure given a sketch of the figure with various measurements...
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Worksheet
Curated OER

Perimeter and Area

For Students 6th
In this measurement worksheet, 6th graders calculate the perimeter and area for 9 different squares. Students record their answers on the lines beneath each square.
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Lesson Plan
Curated OER

How To Find the Area of a Square And Rectangle

For Teachers 4th - 6th
Students practice using the formula to calculate the area of a square or triangle. They participate in large group guided practice using simple area of squares problems then complete a series of problems calculating the area of rectangles.
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Lesson Plan
Curated OER

Area of Complex Figures

For Teachers 5th
Fifth graders use formulas for calculating areas of squares and rectangles to find area of complex figure, compare their own ideas with their classmates' ideas, and recognize that there are multiple methods for finding area of complex...
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Lesson Plan
Curated OER

Area, Arithmetic and Algebra

For Teachers 8th - 10th
Students model formulas for rectangles and squares. In this area, arithmetic and algebra lesson, students explore the formula for the area of squares and rectangles. They use squares to model the formula for the area and identify...
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Lesson Plan
Curated OER

Area is Always Flat, But It's Not Always Regular

For Teachers 3rd - 6th
Students calculate the area of regular and irregular polygons by counting the number of whole an half squares within the polygon. They determine the formula for regular polygons and label the area in square units.
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Worksheet
Curated OER

Perimeter and Area

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

Dan's Badge

For Teachers 8th - 12th
Students solve a math problem using area formulas of circles and squares. They read and discuss the problem, analyze images of badges, reconstruct the badge from the problem using circles and rulers, and share the solution with the class.
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Worksheet
Curated OER

Guided Notes on Area

For Students 9th - 10th
In this area worksheet, students find the area of rectangles, triangles and circles. This eight-page worksheet contains approximately 36 problems. Examples and explanations are provided. Answers are included at the end of the worksheet.
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Lesson Plan
Curated OER

Introduction to Area

For Teachers Higher Ed
For this area worksheet, students find the area of four rectangles when given the drawings with grid markings inside each. They use the area formula to find the area of five rectangles. This worksheet is intended to be used as a part of...
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Worksheet
Curated OER

Developing an Understanding for Square Roots

For Students 8th - 12th
In this algebra worksheet, students discover properties of squares while making squares with a Geoboard. There are two charts to complete and 15 questions.

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