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Lesson Plan
Curated OER

Isosceles Triangles

For Teachers K - 2nd
Students investigate triangles. In this shapes geometry lesson, students define and state the attributes for equilateral, scalene, and isosceles triangles. Students locate the prefix "tri" in a variety of words and make connections with...
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Worksheet
Curated OER

Skills and Application

For Students 9th - 10th
For this geometry worksheet, students identify the different properties of parallel lines cut by a transversal. They identify the different angles created by such lines. There are 16 questions.
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Interactive
Curated OER

Basic Geometry Vocabulary

For Students 10th
In this geometry worksheet, 10th graders match basic vocabulary words relating to angles, circles, quadrilaterals, and transformations in a drag and drop game format.  The one page interactive worksheet contains twenty matching questions...
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Lesson Plan
Curated OER

Classifying and Measuring Angles

For Teachers 5th
Fifth graders explore the three types of angles. In this math lesson, 5th graders estimate the measure of angles and draw the angles using a protractor.
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Worksheet
Curated OER

Review of Geometry I

For Students 7th - 10th
For this review worksheet, students identify the characteristics of intersecting and parallel lines  They explore vertical, supplementary, alternate interior, alternate exterior  and corresponding angles.  This two-page worksheet...
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Worksheet
Curated OER

Geometry

For Students 7th - 8th
For this line and angles worksheet, learners 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

Angles

For Students 6th - 10th
For this angles worksheet, students write the compliment and supplement angles to the angles given. Students complete 7 problems total.
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Worksheet
Curated OER

Angles

For Students 4th - 6th
For this angles worksheet, students classify and measure a set of 12 angles. An answer key is included A website reference is given for additional resources.
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Worksheet
Curated OER

Angles

For Students 4th - 6th
In this angles worksheet, learners classify and measure a set of 12 angles. A website reference for additional activities is given.
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Lesson Plan
Curated OER

How To Use A Protractor

For Teachers 5th
Fifth graders use the SMART Board to demonstrate how to use a protractor to measure acute, obtuse, and right angles. In this protractor lesson plan, 5th graders also complete an angles worksheet.
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Lesson Plan
Curated OER

Exploring Angle/Pair Relationships

For Teachers 7th - 10th
Students find missing angles and sides of triangles. In this geometry lesson, students create intersecting lines to measure angles. They use Cabri Software to create virtual angles.
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Worksheet
Curated OER

Corresponding Angles

For Students 6th - 10th
For this corresponding angles worksheet, students measure the corresponding angles in each problem. Students complete 6 problems.
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Lesson Plan
Curated OER

Angles, Lines and Transversals

For Teachers 9th - 10th
Students identify and determine angle pair relationships. In this geometry lesson, students identify different angles of parallel lines that are cut by transversals. They identify interior and exterior angles after watching a video.
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Worksheet
Curated OER

Measuring Angles Worksheets

For Students 4th - 10th
In this angles learning exercise, students measure the angles in the protractors on the learning exercise. Students complete 6 problems total on this learning exercise.
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Worksheet
Curated OER

Classifying Angles Worksheet

For Students 3rd - 6th
For 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

Applying Geometry

For Students 6th - 12th
In this angles, area, and perimeter worksheet, students find different angles, area, and perimeter of different shapes. Students complete 8 problems total.
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Worksheet
Curated OER

Forty Mental Math Angle Problems

For Students 10th - 11th
In this angle worksheet, students answer forty mental math questions divided into four problem sets.  These problems require students to remember angle facts and so simple calculations mentally.
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Worksheet
Curated OER

Sunlight Angles

For Students 4th - 10th
In this sunlight worksheet, students solve the problem of how much energy the Earth receives from the different angles of the sun. Students collect data, chart it, and come up with a conclusion.
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Lesson Plan
Curated OER

Identifying Triangles

For Teachers 6th
Sixth graders identify and define a variety of triangles. For this identification of triangles lesson, 6th graders draw examples of each triangle on a whiteboard, then complete a worksheet.
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Worksheet
Curated OER

Nine Quadrilateral Problems Involving Angle Measures and Classification

For Students 9th - 11th
In this quadrilaterals learning exercise, students calculate the measure of angles in five parallelograms, name a quadrilateral, and find values of given variables in three diagrams.  The solutions are provided.
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Worksheet
Curated OER

Word Problems

For Students 9th - 10th
In this geometry worksheet, students read a scenario and translate it using geometric concepts to find their answers. There are 15 questions with an answer key.
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Worksheet
Curated OER

Describe Five Polygons

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

Geometry

For Students 6th - 10th
In this geometry worksheet, students find the sum of angles, label angles, and more. Students complete 6 questions total on this worksheet.
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Worksheet
Curated OER

Eleven Angle Addition Postulate and Adjacent Angle Problems

For Students 9th - 11th
In this angles worksheet, learners use the angle addition postulate, the idea of adjacent angles and the diagrams shown to answer eleven questions