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Classifying Triangles
If you're looking for a presentation to assist you in your teaching of triangles, this one could be for you. In it, learners are shown how triangles are classified by the size of their angles and by their sides. These are tricky concepts...
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Angles
Fourth and fifth graders investigate angles and name them according to the criteria for obtuse, acute, and right angles. They examine a human-made yarn pattern on the floor of their classroom and identify angles, vertices, and types of...
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Angles Lesson 15-2
The four major types of angles, right, obtuse, acute, and straight are described in this fine presentation. First, the important vocabulary associated with angles is presented, then the types of angles are described. A protractor is...
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Drawing Angles
Get out those protractors! Once geometers can identify obtuse, acute, right, and straight angles, get them to measure and draw their own. There are six boxes here, each with an angle measurement. Learners use a protractor to draw the...
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Lines and Angles with K'NEX
Here is a geometry activitywhich invites learners to create models using their knowledge of lines, segments, rays, and angles. This activity reinforces geometric vocabulary and concepts through practical application, it also includes...
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Angles
Here is a well-designed presentation on different types of angles for your young geometers. In it, learners view slides that clearly illustrate what these angles are, and how they are formed. Excellent practice when introducing these...
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The Angles
A very cute presentation on the four types of angles can be found in this resource. Young mathematicians are introduced to obtuse, acute, right, and reflex angles. Charming stick figures are depicted using the angles. Great for use in...
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Know Your Angles
Explore types of angles and the characteristics of each. After observing a PowerPoint Presentation, learners tour the school facilities and use a digital camera to capture prescribed angles. Using the digital pictures and written...
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Angles All Around Us
Explore with your class the characteristics of acute, obtuse, right, complementary, and supplementary angles. They take digital photographs around the school and identify the angles in the images. Uisng software, they label and print the...
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Toothpick Triangles
Students draw a chart (included in the instructional activity) to use with their investigation. They review terminology of triangles and receive toothpicks to use in the instructional activity. Beginning with three toothpicks, students...
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Geometric Properties
Students find triangular angles using the angle theorem. In this geometry activity, students describe labeled triangles, use the pythagorean theorem, and rewrite information about triangles in standard form.
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Classification of Triangle Measurement & Perimeter
In this classification of triangles worksheet, 10th graders identify and complete 8 different problems that include determining the measurement and perimeter of various types of triangles. First, they color all right, acute, and obtuse...
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Making an Angle Eater
Third graders create angle eaters where they use circles with cut outs to identify right, obtuse, and acute angles. Students complete 1 angle eater.
Raytheon
Just Measure It
For this line segments and angles instructional activity, learners solve problem solving problems and multiple choice questions about line segments and angles. Students complete 7 pages of problems.
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Classify Triangles
Here is a classifying triangles practice instructional activity in which learners sharpen their problem solving skills as they solve six story problems.
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Poolroom Math
Students identify, name, and measure angles using playing pool as a motivator in this lesson. They measure, define, and label different angles. They then discuss how their knowledge about angles could be used in a game of pool.
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Identifying Angles
Students identify names of angles. They use a large clock to demonstrate angles using certain times of day. Given a geoboard, students create figures with acute, right, and obtuse angles.
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Triangle Designs
In this triangles worksheet, students draw different triangles and write how many sides and angles each one has. Students draw 4 kinds of triangles and have 2 that are impossible to draw.
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Study Buddies: Classifying Triangles
In this math worksheet, pupils analyze an informative chart about the measurement and angles of equilateral, isosceles and scalene triangles. Students then answer 5 questions about classifying triangles.
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Triangles
In this triangles worksheet, 4th graders study the lengths that are stated for 3 triangles and describe each triangle by its sides. Students describe 3 additional triangles by their angles.
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Geometry of Triangles - Week 6
In this triangle worksheet, students explore the characteristics of triangles. They find the area of a pentagon, lengths of the sides of a triangle and the area of a quadrilateral. This two-page worksheet contains seven problems.
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Classifying Angles
In this classifying angles worksheet, 7th graders identify and complete 17 different angles illustrated on the sheet. First, they use the key given to outline each angle. Then, students use a protractor to measure each angle and...
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Countdown Challenge: Geometry Exploration
In this geometry activity, middle schoolers identify and draw right angles, acute angles, obtuse angles and straight angles. This one-page activity contains 34 problems.
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Corresponding Angles
In this corresponding angles worksheet, students identify corresponding angles and determine their angle measurement. This two-page worksheet contains 6 problems. Answers are provided on the last page.