# Classifying Triangles Teacher Resources

Find Classifying Triangles lesson plans and worksheets

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Curated OER

#### Classifying Triangles Using Sides

In this geometry learning exercise, students answer 8 fill in the blank questions where they must examine 5 different complex geometric figures to classify triangles.

Curated OER

#### Study Buddies: Classifying Triangles

In this math worksheet, students analyze an informative chart about the measurement and angles of equilateral, isosceles and scalene triangles. Students then answer 5 questions about classifying triangles.

Curated OER

#### Classify Triangles

Here is a classifying triangles practice worksheet in which learners sharpen their problem solving skills as they solve six story problems.

CK-12 Foundation

#### Classifying Triangles: Lesson

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.

Curated OER

#### The Pythagorean Theorem and Classifying Triangles

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).

Curated OER

#### Classifying Triangles

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...

National Security Agency

#### Classifying Triangles

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 bookÂ The Greedy Triangle,...

Scholastic

#### Study Jams! Classify Triangles

Jam on with this multi-faceted activity teaching triangle classification. Start with a learner-paced lesson describing the different qualities of triangles and followÂ with a fun karaoke session.Â Also provided areÂ two types of...

Curated OER

#### Classifying Triangles Worksheet 2

In this classifying triangles instructional activity, students classify triangles as either scalene, isosceles, or equilateral. Students complete 9 problems.

Curated OER

#### Classifying Triangles

In this classifying triangles learning exercise, 6th graders write the type of triangle, acute, right or obtuse, for 9 pictures of triangles, answers included.

Digging Into Math

#### Classifying Triangles

Young mathematicians explore the world of three-sided shapes in this instructional activity on the different types of triangles. Starting with a general introduction to classification using Venn diagrams, children learn how to...

Illustrative Mathematics

#### Lines of Symmetry for Triangles

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...

Curated OER

#### 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...

Curated OER

#### Classifying Triangles

This presentation shows how triangles are classified by angle measurement and length of sides. Â It reviews isosceles, scalene, obtuse, right, and acute classifications and includes questions for students to classify some of the triangles...

Curated OER

#### Classifying Triangles

In this classifying triangles activity, 10th graders solve 6 different problems related to the classification of triangles either by their angles or by their sides. First, they use a protractor and a ruler to draw triangles using the...

Curated OER

#### Classifying Triangles

In this classifying triangles worksheet, 10th graders solve 9 various problems that classify triangles into categories. First, they refer to the figure shown of an isosceles triangle with two line parallel. Then, students name the sides,...

K12 Reader

#### Classifying Triangles

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...

CK-12 Foundation

#### Pythagorean Theorem to Classify Triangles: Missing Angles

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...

Curated OER

#### Classifying Triangles

In this classifying triangles learning exercise, 10th graders solve 12 different problems that include classifying various types of triangles. They classify and then identify each of the given triangles as isosceles, scalene, or...

Curated OER

#### Classifying Triangles

In this classifying triangles worksheet, 10th graders solve and complete 11 different types of problems. First, they state whether each segment shown is an altitude, median, or neither. Then, students solve for x and find the requested...

Curated OER

#### How Do You Classify Triangles?

Triangles are classified by their angle measurement as well as by the length of their sides. Here are some names that identify the types of triangles: isosceles, equilateral, scalene, obtuse, and acute. Watch this video to learn about...

Curated OER

#### Classifying Triangles Based On Properties of Angles

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...

CK-12 Foundation

#### Applications of the Pythagorean Theorem: Lesson

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....

Curated OER

#### Classifying Triangles by the Length of the Sides Using Cabri Jr.

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...