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Lesson Plan
Curated OER

Angles Everywhere

For Teachers 1st
First graders find angles in their classroom. In this geometric figures lesson plan, 1st graders identify, describe and classify angles they see in their world. Students create pictures that contain angles and display them in the room.
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Lesson Plan
Curated OER

Symmetry in Paper Airplanes

For Teachers 5th - 8th
Students explore symmetry.  In this geometry and scientific inquiry instructional activity, students design paper airplanes with middle line symmetry, as well as right, obtuse, and acute angles.  Students measure the plane's angles using...
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Lesson Plan
Curated OER

Angles, Triangles, Quadrilaterals, Circles and Related

For Teachers 6th - 8th
Young scholars classify angles. In this angles lesson, students explore the characteristics of angles, triangles, quadrilaterals and circles. They identify polygons and sing a classifying angles song. Young scholars participate in a...
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Lesson Plan
Curated OER

Mr. Bo Jangle, What's Your Angle?

For Teachers 3rd
Third graders explore angles. In this geometry lesson, 3rd graders identify and define acute, obtuse, and right angles. Students form angles with their bodies, find angles in picture books, and record angles found outside in their math...
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Worksheet
Curated OER

Classifying Triangles

For Students 8th - 10th
In this classifying triangles worksheet, learners explore given lengths or angle measurements and then classify each triangle as isosceles, scalene or equilateral. They also determine if the triangle may be right, acute or obtuse. This...
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Worksheet
Curated OER

Pythagorean Theorem

For Students 9th
In this Pythagorean theorem worksheet, 9th graders solve and complete 6 various types of problems. First, they find the length of a right-angled triangle's hypotenuse. Then, students determine which triangle is described and explain...
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Lesson Plan
Curated OER

Travel Triangles

For Teachers 8th - 11th
Students demonstrate and understanding of the three types of angles using triangles and quadrilaterals. In this angles lesson plan, students learn about acute, obtuse and right angles. They use cut-outs to find the areas of triangles and...
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Worksheet
Curated OER

Intersecting Planes

For Students 10th
In this intersecting planes worksheet, 10th graders solve and complete 27 various types of problems. First, they use the diagrams at the right to answer each of the questions. Then, students measure each angle shown and classify them as...
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Worksheet
Curated OER

Triangles

For Students 10th
In this triangles worksheet, 10th graders solve and complete 22 different problems related to various types of triangles. First, they name the shortest and longest sides and the smallest and largest angles in each of triangles...
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Worksheet
Math Mammoth

Triangles 1

For Students 5th - 9th
For this triangles worksheet, students measure and calculate the measurements of eight triangles, their sums and classify the triangles as acute, obtuse or right.
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Lesson Plan
Curated OER

Angles, Bearings and Maps

For Teachers 6th - 8th
Middle schoolers review what they comprehend about angles. They name the differnt types of angles and define them. Students use their protractors to answer questions, the teacher walks around to look at the positioning of the...
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Lesson Plan
Curated OER

8th Grade Math Classifying Angles

For Teachers 8th
Eighth graders identify and compare acute, right, obtuse, and straight angles. They draw two angles on pieces of construction paper so they can accurately know what it looks like. Students hang the drawings on the wall. They are asked...
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Lesson Plan
Curated OER

Autobiographical Art

For Teachers 6th - 12th
Students explore how one artist portrays her own experiences and interests through her art. Students then choose themes in their own lives and create works of art inspired by those themes.
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Lesson Plan
Curated OER

Geometric Angles

For Teachers 8th - 10th
Students explore angles and their use in Geometry. Students investigate three different kinds of angles: obtuse, acute, and right angles through an online activity. They identify pairs of angles with special relationships: vertical,...
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Lesson Plan
Curated OER

What's Your Angle?

For Teachers 3rd
Third graders read the story, Magic Schoolbus Inside the Human Body. Then they form right, acute, and obtuse angles using the joints inside their bodies. They write a brief summary about what they learned about angles as a review the...
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Lesson Plan
Curated OER

Geometry Lesson 7: Line Segments And Angles

For Teachers 4th
Fourth graders examine and identify line segments and angles using dot paper to draw them. They look at vertical, horizontal, intersecting, parallel and perpendicular lines, draw right angles and angles that are greater than and less...
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PPT
Curated OER

Classifying Triangles

For Teachers 5th - 7th
This presentation shows how triangles are classified by angle measurement and length of sides.  It reviews isosceles, scalene, obtuse, right, and acute classifications and includes questions for students to classify some of the triangles...
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Lesson Plan
Curated OER

Daily Upkeep 7

For Teachers 4th
In this geometry worksheet, 4th graders complete a quick set of math activities where they first identify which portion of a model is shaded in fraction form. Then, they select which angle best describes a given angle. Finally, students...
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Interactive
Curated OER

Conditional Statements Multiple Choice

For Students 10th - Higher Ed
In this logic activity, students find inverse statements, contrapositives, and converses in ten multiple choice problems.  The solutions are available by clicking on the "check your work" button found bottom left of the page.
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Worksheet
Curated OER

Geometry

For Students 7th - 8th
In this line and angles worksheet, students explore basic geometry vocabulary.  They classify polygons.  Students determine the area and perimeter of given shapes.  They examine the parts of a circle, find volume and surface area of...
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Worksheet
Curated OER

Classifying Angles Worksheet

For Students 3rd - 6th
In this angles worksheet, students classify angles as being acute, right, obtuse, or straight. Students classify 9 angles on this worksheet.
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Worksheet
Curated OER

Describe Five Polygons

For Students 6th - 9th
In this polygons worksheet, students use the parallel, acute, right, obtuse, straight, and reflex to describe the five shapes provided.
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Worksheet
Curated OER

Measuring, Drawing, and Naming Angles

For Students 6th - 10th
In this angles worksheet, students name and measure six angles.  Students then draw four angles with a protractor given the degree measure.
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Lesson Plan
Curated OER

Identify triangles

For Teachers 9th - 10th
Students explore triangles. For this geometry lesson, students will create note cards with pictorial depictions of right, acute,obtuse, scalene, isosceles, equilateral and equiangular triangles. Students will verbally describe each type...