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Lesson Plan
Illustrative Mathematics

Finding Areas of Polygons, Variation 1

For Teachers 5th - 9th Standards
An exercise in finding the area of polygons by decomposing into triangles and composing into rectangles is the focus of this resource. Make several copies of the worksheet for each participant. Ask learners to use colored pencils to...
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Lesson Plan
Alabama Learning Exchange

Polygons-Changing Area Versus Changing Perimeter

For Teachers 5th - 8th Standards
Investigate the area and perimeter of polygons in this geometry lesson. Young geometers use grid paper to draw a quadrilateral and calculate its area and perimeter. They also read The Greedy Triangle to identify the changing shape of...
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Lesson Plan
EngageNY

Using Trigonometry to Determine Area

For Students 9th - 10th Standards
What do you do when you don't think you have enough information? You look for another way to do the problem! Pupils combine what they know about finding the area of a triangle and trigonometry to determine triangle area when they don't...
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Lesson Plan
Curated OER

LEAGUE: Into the Desert: Lesson 1

For Teachers 3rd - 5th
Students discover the human and physical characteristics of desert regions. In this regions lesson, students describe deserts around the world, discuss animals, vegetation, water conservation, and how humans can care for the land.
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Lesson Plan
Curated OER

Rectangular Gardens Within A Given Perimeter

For Teachers 6th
Sixth graders design rectangular gardens with a given perimeter and generalize how to maximize the area Students applying the formulas for perimeter and area of polygons. They analyze length, area, and volume and make relationships...
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Lesson Plan
Curated OER

Quilt to Freedom

For Teachers K - 2nd
Students investigate the Underground Railroad. In this African-American history lesson, students listen to the book Clara and the Freedom Quilt and use map skills to identify the various locations in the book. Students create a freedom...
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Lesson Plan
Curated OER

The Barn Owl Pellet

For Teachers 7th
Seventh graders examine the factors that affect the number and types of organisms that an ecosystem can support.  In this ecosystem lesson students study the barn owl and where it is on the food chain, then dissect an owl pellet.
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Worksheet
CPM

Cones and Spheres

For Students 9th - 10th Standards
Geometry whizzes solve and complete 24 different problems that include determining the volume and surface area of spheres and cones. First, they use the given information to determine the volume of a cone. Then, pupils use the given...
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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

Our community-in sculpture form

For Teachers 7th - 8th
Students design tiles that represent their community. They discuss ideas with another class through email. They then create the tiles, fire them, and attach them to a masonite board to create a community mural.
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Lesson Plan
Curated OER

Shapes and Designs Investigation

For Teachers 6th
Sixth graders estimate angle measures and angle theroms. In this online interactive geometry lesson, 6th graders review types of angles, investigate angle theroms, and explore nonadjacent angles.
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Lesson Plan
Curated OER

Can You Lend Me a Hand?

For Teachers K - 2nd
Young scholars explore the concepts of community. In this communities lesson, students listen and respond to the story of The Little Red Hen and discuss ways to contribute to their own community. Young scholars recognize the importance...
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Lesson Plan
Curated OER

With Liberty & Top Soil for All

For Teachers 6th - 8th
Students compare the basic needs of plants to the basic needs of democracy. In this democracy comparison instructional activity, students complete a worksheet on what happens to a plant that's not nourished. Students draw a correlation...
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Lesson Plan
Curated OER

The Wonders of Bacteria

For Teachers 9th - 10th
Learners explore the evolution and features of bacteria through a series of activities. In this biology lesson, students collect data and graph bacterial growth. They design a brochure about bacteria's role in society.
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Lesson Plan
Alabama Learning Exchange

Dog Gone Again!

For Teachers 3rd - 7th Standards
Here is a real-life activity! Learners must plan the dimensions of a rectangular fence to reign in a runaway dog. They survey what shape and size fence is needed and use formulas to find perimeter and area of the fence. They explore what...
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Lesson Plan
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Illustrative Mathematics

Equal Area Triangles on the Same Base II

For Teachers 9th - 12th Standards
A deceptively simple question setup leads to a number of attack methods and a surprisingly sophisticated solution set in this open-ended problem. Young geometers of different strengths can go about defining the solutions graphically,...
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Lesson Plan
Shodor Education Foundation

InteGreat

For Teachers 9th - Higher Ed Standards
Hands-on investigation of Riemann sums becomes possible without intensive arithmetic gymnastics with this interactive lesson plan. Learners manipulate online graphing tools to develop and test theories about right, left, and midpoint...
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Lesson Plan
Willow Tree

Surface Area of Three-Dimensional Figures

For Students 8th - 11th Standards
Lateral area and surface area are simple concepts, but calculating them is not as easy! Using formulas, learners calculate lateral area and surface area for the same three-dimensional figures. The resource discusses the formula variables...
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Lesson Plan
Bowland

Design the Mascot

For Teachers 6th - 9th
Explore how resizing an object affects its area. The set of lessons challenges young mathematicians to design a mascot for electronic devices. These designs undergo resizing to determine how scale factors of dilation affect area.
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Worksheet
Curated OER

Explore Perimeter and Area - Reteach 18.1

For Students 3rd - 6th
In this perimeter and area worksheet, students review the steps to find perimeter and area. Students then use grid paper to draw the figures described in 6 questions. Students note the perimeter and area of shapes as well.
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Interactive
Curated OER

Coordinate Plane Worksheets - Area of Rectangle

For Students 9th - 12th
In this online math activity, students calculate the area of a variety of rectangles given the measure of their vertices. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
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Activity
Illustrative Mathematics

Same Base and Height, Variation 1

For Teachers 5th - 7th Standards
Four triangles are depicted for learners to construct on a geoboard. They compute and compare the areas, and so meet one of the sixth grade Common Core standards for geometry. Note that the set of triangles does not include a right...
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Lesson Plan
Pennsylvania Department of Education

Multiplication Using Arrays

For Teachers 2nd - 4th
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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Lesson Plan
Curated OER

Making a Quilt: Multiplication

For Teachers 3rd
Third graders explore their multiplication skills. They will use their problem solving skills to solve an everyday math problem that requires them to multiply numbers. This lesson incorporates the use a video titled "Blossom and Snappy...

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