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Lesson Plan
Curated OER

Angles And Triangles

For Teachers 7th
Seventh graders participate in a lesson that is focused upon the concepts of classifying different angles and triangles. They practice classifying triangles according to its kind that includes types of angles, congruence, and vertices....
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Worksheet
Curated OER

Tangrams

For Students 10th
In this tangrams instructional activity, 10th graders solve 7 different problems related to designing tangrams. First, they trace each of the figures shown on the sheet. Then, students cut out the pieces and rearrange them to form each...
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Organizer
Curated OER

Triangle Worksheet: Cut, Construct and Think 1

For Students 6th
In this triangle worksheet, 6th graders draw and cut out a triangle, cut it into three pieces, then arrange the pieces to make new shapes.
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Lesson Plan
EngageNY

Properties of Area

For Teachers 9th - 10th Standards
What properties does area possess? Solidify the area properties that pupils learned in previous years. Groups investigate the five properties using four problems, which then provide the basis for a class discussion.
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Lesson Plan
Curated OER

Reflections

For Teachers 9th - 12th Standards
Learners explore reflection of polygons on a coordinate plane. They examine the relationships that exist between corresponding points and sides. 
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Worksheet
Curated OER

Number Sense and Numeration: Multiples, Factors and Square Roots

For Students 6th - 8th
A great resource for any math teacher covering multiples, factors or square roots; this worksheet walks young mathematicians through the logic behind factoring and square roots with a systematic set of problems which gradually increase...
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Unit Plan
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1
Virginia Department of Education

Exploring 3-D Geometry

For Teachers 6th - 8th Standards
Take young mathematicians on an exploration of the world of 3-D geometry with this seven-lesson unit. After first defining the terms perimeter, area, and volume and how they apply to the real world, students continue on...
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Lesson Plan
Curated OER

I. M. Pei and the Geometry of the NGA

For Teachers 5th - 8th
Learners compare design elements in neoclassical and modern architecture. They review knowledge of triangles and quadrilaterals and design a geometric pattern using Pei's polygons They create a city plan using a variety of lines and...
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Lesson Plan
Curated OER

Quadrilaterals

For Teachers 3rd - 5th
Students create, classify and sort quadrilaterals. They create several four-sided polygons, then choose their most unique quadrilateral to share with their group.
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Lesson Plan
Curated OER

The Overlooked Regular Pentagon

For Teachers 10th
Tenth graders discuss the history of geometry as it relates to pentagons. In this geometry lesson, 10th graders solve problems of a pentagon inscribed inside of a circle using ratio. They review other properties for shapes of polygons...
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Worksheet
Curated OER

Midpoints and Bisectors

For Students 9th - 10th
In this geometry activity, learners calculate the midpoints of polygons using coordinate pairs. They find the  angle bisector, altitude and median of the given triangles. There are 33 questions.
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Lesson Plan
Curated OER

Triangle Island

For Teachers 9th - 12th
High schoolers calculate the altitude of triangles.  In the web based lesson, students explore the interior distance from a given point in a polygon to its side.  They compute the sum of these lengths. High schoolers read...
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Lesson Plan
Curated OER

Volume of Prisms

For Teachers 9th - 10th
Students calculate the volume of different polygons. In this geometry lesson, students identify the relationship between base and height. They calculate the area of each prism and cylinder.
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Lesson Plan
Curated OER

Back to the Bees (Tesselations)

For Teachers 6th
Sixth graders observe the creation of a tessellation with hexagons. In groups, they work with polygons to discover what shapes can be used to create tessellations and explore the angle measurements of each shape. Using internet websites,...
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Printables
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1
Kids Can Have Fun

Cut and Paste Shapes

For Teachers Pre-K - 2nd Standards
Engage youngsters in exploring the wonderful world of shapes with this series of cut-and-paste activities. Offering a variety of materials from printable pattern blocks to a series of matching exercises, this resource will have your...
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Interactive
Scholastic

Study Jams! Surface Area

For Students 6th - 9th Standards
Explore surface area and calculate how much wrapping paper one needs to cover a whole box with this math video. The resource gives a nice visual of surface area and explains the use of a square unit.
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Interactive
PHET

Area Builder

For Students 3rd - 6th Standards
All that matters is the tiles. Pupils use the interactive to investigate the relationship between area and perimeter using tiles. The interactive has an explore and a game mode to accommodate different steps in learning. The game mode...
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Performance
Radford University

Tiling a Kitchen Floor

For Teachers 9th - 12th Standards
Cover the floor with math. Pupils work to determine the proper shape to cover a kitchen floor. They first determine the number of tiles to purchase and configure their placement to reduce the amount of waste. Teams finish by creating a...
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Lesson Plan
Curated OER

Evergreen Tree

For Teachers 1st - 2nd
Learners use a ruler to make measurements, and to create triangles and a rectangle. They take the shapes they've made and assemble them into an evergreen tree image. This simple, yet effective, instructional activity would be ideal for...
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Lesson Plan
Curated OER

Shapes and Tools

For Teachers K - 1st
Young learners view different shapes drawn by the teacher on the board. The teacher identifies each shape by name and discusses the importance of knowing the difference between shapes when building something. The pupils complete the...
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Lesson Plan
Curated OER

Similarity and Dilations - Discover Properties of Similar Figures

For Teachers 9th - 12th Standards
Learners investigate properties of similar figures. In this properties of similar figures lesson, pupils construct similar figures using Cabri Jr. They dilate their figure to create a similar one, and discuss the relationships between...
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Worksheet
Curated OER

Section 2.5 - Problem Solving (Part B)

For Students 7th - 12th
Trying to figure out the perimeter of a geometric figure? Here are a few word problems to set up algebraic equations to solve for perimeter. There are also some word problems to set up algebraic equations to solve for angles in a...
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Worksheet
Curated OER

Rectangles and Shapes

For Students K - 3rd
A rectangles and shapes online worksheet in which young learners determine what fraction is shaded in eight rectangles. They also answer three word problems and color the parts shown and requested on five shapes. They get immediate...
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Lesson Plan
Curated OER

Shapes Activities and Lessons

For Teachers Pre-K - K
A fabulous lesson on identifying circles, triangles, squares, and rectangles awaits your students. They use large motor skills hopping from shape to shape, use visual and kinesthetic skills passing a ball of yarn between three people to...