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Lesson Plan
Curated OER

Geometry Finding Pentominoes

For Teachers 3rd - 5th
Students explore the characteristics of geometric shapes. In this geometric shapes lesson, students use tiles to draw pentominoes. Students participate in various learning center activities focused on configuring pentominoes.
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Worksheet
Curated OER

Geometry: Transformations Practice

For Students 9th - 12th
Graph transformations, write rules to describe transformations, find coordinates of vertices after given transformations: geometers practice these skills on a two-page instructional activity in 14 problems. No answers are provided.
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Worksheet
Lone Star College

Geometry Worksheet II

For Students 7th - 10th Standards
Young geometers get practice with the algebra of angles in an extensive skills practice worksheet. Supplementary, complementary, and vertical angle relationships are used, along with parallel lines cut by a transversal and angle sum...
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Assessment
Mathematics Assessment Project

Hopewell Geometry

For Students 8th - 10th Standards
Right triangles from 2,000 years ago? Learners investigate different right triangles found in the earthworks of the Hopewell people, a Native American culture that populated the United States from 200BC to AD 500. Learners apply concepts...
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Lesson Plan
Curated OER

Miras, Mirrors, and Kaleidoscopes!

For Teachers 9th - 12th
Students use hands-on activities to explore transformations. They view a video segment that demonstrate how M. C. Escher employed geometry and transformations to create so many of his famous drawings.
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Lesson Planet Article
Curated OER

Area and Perimeter Activities

For Teachers 3rd - 5th Standards
Read this article before you begin teaching geometry! It gives teachers some insight into the world of teaching geometry to young learners, and four area and perimeter lessons are attached. 
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Lesson Plan
Curated OER

Getting It Right! An Investigation of the Pythagorean Theorem

For Teachers 6th - 8th
Learners construct a variety of right triangles using a right-angled set square, cutting corners from pieces of paper or cardboard, and using dynamic geometry software. They measure the sides of these various right triangles and record...
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Lesson Plan
Curated OER

Exploring Polygons and The Greedy Triangle

For Teachers 1st - 3rd
Excellent lesson plan! Anne Linehane's geometry story, The Greedy Triangle, offers an opportunity to practice forming various types of polygons with your learners. Using elastic bands (or Chinese jump ropes),...
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Lesson Plan
Curated OER

Shipping Rolled Oats

For Teachers 7th - 9th Standards
What better way to start your day than with a box of oatmeal? Or what better way to start your geometry class than by calculating its volume? Eighth graders discover just how practical volume computation can be in business and in breakfast!
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Worksheet
Mt. San Antonio Collage

Postulates, Angles, and Their Relationships

For Students 8th - 11th Standards
More than a worksheet, learners go through geometry topics example by example on the nicely organized handout. From postulates to classifying angles, there are rules and examples provided for each topic. The ten pages of problems...
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Lesson Plan
Curated OER

Exploring Geometry in the Real World

For Teachers K - 1st
Students find real-world examples of a variety of geometric shapes. They conduct research, record observations, and write descriptions. They create a classroom cityscape and highlight the information they gathered. They present an oral...
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Lesson Plan
Curated OER

Geometry Challenge

For Teachers 5th - 7th
Students explore angle relationships and measure angles with a protractor by hand and online. They explore various websites and complete online activities and complete a worksheet.
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Lesson Plan
Curated OER

Geometry, Measurement & Reasoning

For Teachers 7th - 9th
Students measure prisms and determine their volume. In this measurement and reasoning lesson, students estimate the volume and area of prisms. They measure given boxes. Students use paper to create prisms and cylinders. They determine...
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Worksheet
Curated OER

Graphs with Algebra and Geometry

For Students 9th - 10th
In this math worksheet, students analyze graphs, the coordinate plane and angles. They identify polygons based on their number of sides and interior angles. There are 4 questions with an answer key.
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Lesson Plan
Curated OER

Geometry Practice: Volume

For Teachers 9th - 12th
In this volume worksheet, young scholars find the volume of 6 solids.  Students find the volume of rectangular and triangular prisms.
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Lesson Plan
Curated OER

Geometry Regents Questions: Isosceles Triangle Theorem

For Teachers 9th - 12th
In this isosceles triangle worksheet, students solve 19 multiple choice and short answer problems.  Students use the isosceles triangle theorem to determine unknown angle measures.
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Worksheet
Curated OER

Geometry Practice GG 66: Midpoint of a Line

For Students 10th - 11th
In this midpoint of a line instructional activity, learners examine coordinates and determine the midpoint of a line segment.  This three-page instructional activity contains 10 multiple-choice problems.  Answers are provided...
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Worksheet
Curated OER

Perimeter, Area, Volume, and Surface Area

For Students 10th
For this geometry worksheet students solve problems involving perimeter, area, volume, and surface area for various geometric shapes.  The four page worksheet contains twenty-five problems.  Answers key is provided. 
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Lesson Plan
Curated OER

Shapes of Africa

For Teachers 1st
First graders learn the names of geometric shapes and about African cultures. In this geometry and culture instructional activity, 1st graders describe real world objects and learn to name them with geometric terms such as square,...
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Lesson Plan
Curated OER

Symmetry and Symbols

For Teachers 2nd - 3rd
Students identify symmetrical and congruent elements in folk art. For this art and geometry lesson, students examine pictures of Masonic Plaque in the Form of a Royal Arch Tracing Board for evidence of congruent and symmetrical elements....
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Lesson Plan
Curated OER

Buildings in Our Community: What Do You See?

For Teachers K
Students investigate the architecture in their hometown by visiting buildings.  In this geometry lesson, students examine buildings through photographs and explain the different geometric shapes found in the architecture....
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Lesson Plan
Curated OER

Size Riddles

For Teachers 2nd - 6th
Young scholars investigate shapes and sizes by creating a riddle.  In this geometry lesson, students read one of two books and investigate facts about an object's size.  Young scholars write a riddle using the facts they have...
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Worksheet
Curated OER

Perimeter of Scalene Triangle

For Students 10th
In this geometry worksheet, 10th graders find the perimeter of scalene triangles, or triangles where the 3 sides are different lengths. There are 6 questions with an answer key.
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Worksheet
Curated OER

The Triangles Problem

For Students 10th
In this geometry worksheet, 10th graders explain how two triangles can have 5 parts of the other triangle and still not be congruent. This is a word problem with an answer key.

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