# Classifying Triangles Teacher Resources

Find Classifying Triangles lesson plans and worksheets
Showing 1 - 24 of 106 resources
Lesson Planet

#### Study Buddies: Classifying Triangles

For Teachers 4th - 5th
In this math worksheet, young scholars 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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#### Classify Triangles

For Students 4th - 7th
Here is a classifying triangles practice activity in which learners sharpen their problem solving skills as they solve six story problems.
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#### Classify Triangles - English Learners 16.5

For Students 4th - 5th
In this classifying triangles worksheet, learners solve four multiple choice problems where they classify triangles as scalene, right, isosceles, and equilateral.
4:55
Lesson Planet

#### Classifying Triangles: Lesson

For Students 4th - 8th Standards
That's correct, it is right and scalene. The video introduces the two methods for classifying triangles, sides, and angles. A resource in the playlist for basic geometry provides the definitions for each of the classifications.
Lesson Planet

#### Classify Triangles - Homework 15.3

For Students 4th - 6th Standards
Elementary schoolers identify triangles as equilateral, scalene, isosceles, or right. Seven triangles are depicted for them, followed by two word problems. This would serve best as a homework or an assessment.
Lesson Planet

#### The Pythagorean Theorem and Classifying Triangles

For Teachers 9th - 12th Standards
Through the examination of the relationship between the lengths of the sides of a triangles students will learn the classification of triangles (acute, right, or obtuse).
Lesson Planet

#### Classifying Triangles

For Teachers 4th - 8th Standards
Building on young mathematicians' prior knowledge of three-sided shapes, this lesson series explores the defining characteristics of different types of triangles. Starting with a shared reading of the children's book The Greedy Triangle,...
Lesson Planet

#### Classifying Triangles

For Teachers 4th - 8th Standards
Young mathematicians explore the world of three-sided shapes in this lesson on the different types of triangles. Starting with a general introduction to classification using Venn diagrams, children learn how to categorize triangles based...
Lesson Planet

#### Classify Triangles: Reteach

For Students 4th - 5th
In this classifying triangles worksheet, students review the four different types of triangles. Students then name the kind of triangle shown and write equilateral, isosceles, right, or scalene. Students then use the triangles at the...
Lesson Planet

#### Study Jams! Classify Triangles

For Students 5th - 8th Standards
Jam on with this multi-faceted activity teaching triangle classification. Start with a learner-paced lesson describing the different qualities of triangles and follow with a fun karaoke session. Also provided are two types of...
Lesson Planet

#### Classifying Triangles Using Sides

For Students 4th - 5th
In this geometry worksheet, students answer 8 fill in the blank questions where they must examine 5 different complex geometric figures to classify triangles.
Lesson Planet

#### Lines of Symmetry for Triangles

For Teachers 3rd - 5th Standards
What can symmetry tell us about triangles? After looking at four examples, learners will come to realize that lines of symmetry are different for equilateral, isosceles, and scalene triangles. Use this guided practice activity as an...
Lesson Planet

#### Classifying Triangles

For Students 8th - 10th
In this classifying triangles worksheet, students 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...
Lesson Planet

#### Classifying Triangles

For Teachers 3rd - 5th
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...
Lesson Planet

#### Classifying Triangles

For Students 2nd - 3rd Standards
Bring math and reading informational text together with a reading comprehension lesson. After kids read about isosceles, scalene, and equilateral triangles, they answer five comprehension questions to demonstrate how they can use context...
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#### Pythagorean Theorem to Classify Triangles: Missing Angles

For Students 8th - 12th Standards
Learn to use the Pythagorean Theorem with non-right triangles. Pupils use the interactive to discover the relationship between the lengths of sides for acute and obtuse triangles. They compare the squares of the sides of the triangles to...
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#### Classifying Triangles Worksheet 2

For Students 4th - 8th
In this classifying triangles activity, students classify triangles as either scalene, isosceles, or equilateral. Students complete 9 problems.
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#### Classifying Triangles

For Students 6th
In this classifying triangles activity, 6th graders write the type of triangle, acute, right or obtuse, for 9 pictures of triangles, answers included.
Lesson Planet

#### Tangling with Triangles

For Teachers 4th - 5th
Fourth and fifth graders explore triangles. In this triangles instructional activity, learners discover how to classify triangles according to their sides and measurements. They construct models of acute, right, and obtuse triangles.
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#### Classifying Triangles by the Length of the Sides Using Cabri Jr.

For Teachers 9th - 12th Standards
Learners follow detailed directions to create triangles on their graphing calculator. In this properties of triangles lesson, they will create triangles on their calculators using the Cabri Jr. application. They then identify three...
Lesson Planet

#### Classifying Triangles Based On Properties of Angles

For Teachers 5th Standards
The interactive lesson featured here calls for the use of a Smartboard for sorting and classifying shapes. Then, pupils discuss the rules they followed for sorting their shapes, particularly focusing on the properties of angles. While...
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#### Classifying Triangles

For Students 10th
In this classifying triangles instructional activity, 10th graders solve 99 various types of problems that include classifying various triangles. They use a protractor and ruler to draw triangles using the given conditions. Then,...
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#### Classify Triangles

For Students 6th - 10th
What types of triangles are there? Learners start this worksheet by reviewing the definition and examples of equilateral, isosceles, scalene, right, acute, and obtuse triangles. Then, they examine and identify six triangles on their own.
3:34
Lesson Planet

#### Applications of the Pythagorean Theorem: Lesson

For Students 8th - 11th Standards
The Pythagorean Theorem works for something other than right triangles; show your class all it can do. Using information from the Pythagorean Theorem, the video shows how to determine whether a triangle is an acute or obtuse triangle....