# Area of Irregular Shapes Teacher Resources

Find Area of Irregular Shapes lesson plans and worksheets

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#### Areas of Irregular Shapes

In this geometry instructional activity, students practice estimating the area of irregular shapes. There are 5 questions on this instructional activity in which they must estimate areas.

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#### Recognize Area as Additive - Matching Worksheet

Wow, that's a big pencil box! Scholars measure the area of a 15-foot pencil box among other measurement word problems. For each, they evaluate the information given to figure the area, which is sometimes not the end-all answer they are...

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#### Area of Irregular Shapes

In this irregular shapes worksheet, 10th graders solve 10 different problems that include determining the area of various irregular shapes as shown in each. First, they divide each figure into familiar shapes. Then, students determine...

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#### Area Of Irregular Shapes

In this math worksheet, learners complete 13 problems where they find the area of irregular shapes where some of the measurements are given. Examples are given in this well-designed worksheet.

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#### Areas and Volumes - 2D Shapes

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, young scholars apply this new knowledge to determine the...

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#### Area Explorations

Students explore the concept of area. In this area instructional activity, students find the area of irregular shapes with right angles. Students break down each irregular shape into multiple regular shapes in order to find the area. ...

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#### Footprints: Take a Step into Estimation

Compare sizes of student footprints with those of elephants and sauropod dinosaurs! Upper graders make estimations of the areas of irregular shapes; learners use grids to make and explain estimates within low and high ranges.

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#### Estimating Area

How do you find areas of irregular shapes? Scholars use a given diagram of a lake to estimate its area. Using shapes with known area formulas helps with this estimation.

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#### Area of Rectangles Using Sums and Differences

Use the formula for the area of a rectangle for more than just rectangles! Scholars see that they can use common area formulas to find the area of irregular shapes.

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#### Calculate the Area of Rectangles

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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#### Comparing Areas

Before your scholars know how to multiply side lengths to find an area, give them some practice in simply counting units. They examine shapes that have already been segmented into units, counting them to get the area. There are three...

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#### Irregular Shape Area-Polygons

Young scholars find the area of irregular shaped polygons. In this geometry lesson, students identify the different shapes of a polygon and use the best method to find the area on a coordinate plane.

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#### "Picking" Your Way Through Area Problems ID: 8270

Tenth graders explore area of polygons. In this geometry lesson, 10th graders use a geometry utility and a geoboard application to investigate the area of irregularly shaped polygons.

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#### Give Me a Hand or Leaf Me Alone

Students investigate surface area. In this Algebra I/Geometry lesson, students analyze and collect data to find the surface area of an irregularly shaped object by relating area to mass. Students use technology to create a scatter plot...

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#### Geometry Practice: Area of Polygons #9

In this area of polygons worksheet, students find the area of 12 polygons. Each shape is drawn on a grid. The area of each square on the grid is given. Problems are all multiple choice.

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#### Math Worksheet: Area (3)

In this area worksheet, students find the area of one irregular polygon. Students find the area by dividing the irregular polygon into multiple regular polygons.

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#### Gotcha Covered, Pardner!

Young geometers use the interactive website Cyberchase to practice calculating both area and perimeter. Real world problems encourage learners to discover that we use math each and every day.

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#### Estimating the Area of a Reservation

Fifth graders estimate the area of an Indian Reservation. In this area lesson students find the approximate area in square miles of Flathead Reservation. The students work with irregular shapes of areas.

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#### Awesome Area - Geometry and Measurement

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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#### Geometry Part 2: Measurement in 2- and 3-Dimensions, Plane Sections of Solids

What kind of tree does a math teacher climb? A geometry! Here is a lesson that includes all the geometry resources you could ever wish for in one comprehensive workbook. Class members demonstrate what they have learned by determining the...

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#### Lesson Plan: Pythagorean Theorem

Young geometers use technology (Geometer’s Sketchpad) to explore the Pythagorean Theorem and analyze different proofs. Students work in small groups to gain insight into the relationships of the sides of right triangles by constructing...

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#### Does Sunlight Effect Leaf Size?

Students make estimates and then measure leaves for accuracy. They calculate the area of the leaves by drawing an outline on graph paper and counting the squares. They compare the leaves exposed to sunlight to those that are in constant...

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#### Multiplication Using Arrays

Explore the concept of multiplication by using arrays. Classmates use arrays to gain a better understanding of multiplication. They break arrays apart to model the distributive property of multiplication over addition. The relationship...

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#### The Good, The Bad, The Ugly

Sixth graders examine the causes of the stock market crash of 1929. In this integrated math/history unit on the stock market, 6th graders study, research, and read stocks, visit a local bank, and create a PowerPoint to show the finished...