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In this activity, students will apply knowledge of the triangle inequality theorem to determine if the three sides given can form a triangle--as they color! Students will color problem numbers on the mandala with 2 opposing colors of their choice--a dark color if the sides given can form a triangle
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Get this as part of a bundle: Geometry Skills Color By Number Bundle 1: 10 Essential Skills

\$2.00
54 Ratings
4.0

PDF (786.32 KB)

Triangle Inequalities Coloring Activity This is a fun way for students to practice identifying and solving problems with inequalities in triangles. The 10 problems address the following skills: • Determine whether three side lengths could form a triangle. • Given two side lengths, find a range of
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\$2.00
91 Ratings
4.0

PDF (2.55 MB)

Triangle Inequality Theorem - Discovering Properties of Triangle Side Lengths: Start out the lesson by saying “Ok, we are working with triangles, so before we start today, I need everyone to quickly move the desks to be arranged in one big triangle. Then we can begin. Please start with 16 (or an
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\$3.00
72 Ratings
4.0

PDF (1.74 MB)

***NO PREP LESSON*** This ready to use product is designed to help students understand the Triangle Inequality Theorem. Students will start by cutting out 8 pencils of different lengths (1 in - 8 in) and use these to form triangles and non-triangles (Preselected triangle lengths are given on the st
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\$3.00
25 Ratings
4.0

PDF (1.67 MB)

Triangle Inequality Theorem Notes, Journaling, Exit Tickets Covers 6th Grade Math TEKS 6.8A Included in the following BUNDLE: TEKS 6th Grade Reporting Category 3 Engage students with this foldable which covers the Triangle Inequality Theorem. Students will make this foldable using an accordion f
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\$1.50
51 Ratings
3.9

PDF (949.08 KB)

In this super secret number puzzle, students work with the triangle inequality theorem. Students need to know that the sum of any two sides of a triangle must be greater than the third side. Students find the answers to each of the ten questions and then add their answers together – this is the su
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Get this as part of a bundle: Geometry Super Secret Number Puzzle Bundle

\$1.00
14 Ratings
4.0

PDF (4.29 MB)

Triangle Inequality Theorem Task Cards set includes 24 task cards focused on the triangle inequality theorem. There is a set with QR Codes and a set with QR Codes (they have the same scenarios). The card scenarios vary in difficulty, allowing for classroom differentiation. An answer sheet (should be
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\$2.50
46 Ratings
4.0

PDF (1.82 MB)

Triangle Inequality Theorem mini-unit focuses on determining if three side lengths form a triangle. This introduction to the triangle inequality theorem includes notes, 2 activities, an exit ticket, homework, and a quick writes. These materials will engage kids as they learn about this important mat
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\$2.50
45 Ratings
4.0

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You Get: 7 Stations 8 problems per station Station Label Cards Answer Key Types of Questions: State if the three numbers can be the measures of the sides of a triangle Find the range of possible measure for the third side Order the angles in each triangle from smallest to largest (given diagram) O
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\$10.00
\$7.00
30 Ratings
4.0

PDF (1.93 MB)

Triangles and the Triangle Inequality Theorem includes interactive notebook activities that explore if side lengths form a triangle, the sum of angles in a triangle, classifying triangles, and the relationships between the sides and the angles of triangles. These activities are introductory and mean
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\$6.00
\$4.00
40 Ratings
4.0

PDF (4.27 MB)

Triangle Inequality Theorem Investigation! Geometry practice for grades 8-12. Promote student analytical thinking through an inductive approach to the triangle inequality theorem! Triangle Inequality Theorem Investigation is a great introduction to the triangle inequality theorem and can help in s
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\$4.50
29 Ratings
4.0

PDF (929.12 KB)

This is a maze consisting of 14 Inequalities in One Triangle problems in which students are given 2 sides of a triangle and must use the Triangle Inequality Theorem to find the range of value for the third side of the triangle. Please view the preview for a picture of the completed maze to determin
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\$1.00
34 Ratings
4.0

PDF (699.45 KB)

Students will explore the triangle inequality theorem by trying to create their own triangles with various side lengths. Students will cut out strips of paper to represent the side lengths of the triangles, then will put a given three together to test and see if a triangle can be formed. Students
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\$1.99
28 Ratings
4.0

PDF (4.89 MB)

This sort and paste activity is designed to reinforce and practice the conditions under which a triangle can and can’t be constructed. It reviews some of the properties of triangles and focuses on the triangle inequality theorem. It is a quick and interactive activity. This resource includes: -s
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Get this as part of a bundle: Triangle Inequality Theorem Activity Bundle 7.G.A.2

\$1.50
6 Ratings
4.0

PDF (10.39 MB)

This is a self discovery group activity. Students use spaghetti noodles, of different lengths, to create triangles. They are then asked to generate their own theorem based on the activity. The activity then covers the topics of "the largest angle is opposite the longest side". Pratice problems ar
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\$2.00
31 Ratings
4.0

PDF (324.24 KB)

Students will use the triangle inequality theorem to determine whether 3 numbers will be able to make a triangle. The answers will be used to decode a riddle. *** This item is also available in the "Relationships Within Triangles VALUE PACK" ***
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\$1.50
25 Ratings
4.0

PDF (144.1 KB)

This card sort activity requires students to use the Triangle Inequality Theorem, Converse of the Pythagorean Theorem, and Pythagorean Inequality Theorems to classify triangles as Acute, Obtuse, Right, or Not a Triangle when given 3 side lengths. Students will cut out the 20 boxes and then use the
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Get this as part of a bundle: Right Triangles & Trigonometry Activity Bundle

\$1.50
23 Ratings
4.0

PDF (1.71 MB)

Bring to life the traditional practice class or homework assignment with some global competency and diversity! While your students practice the triangle inequality theorem, they can learn about the life of one of the world's greatest coaches, Pat Summitt! Person Puzzles are designed to highlight in
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\$1.00
12 Ratings
4.0

PDF (922.18 KB)

This set of Mini Task Cards is better than a worksheet for practicing conditions that make triangles. It is an engaging practice activity for the triangle inequality theorem that supports CCSS 7.G.A.2 . This resource includes: -18 Mini Task Cards -Answer Key -10 Low Prep Engaging Ways to Use Task
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Get this as part of a bundle: Triangle Inequality Theorem Activity Bundle 7.G.A.2

\$1.50
13 Ratings
4.0

PDF (8.89 MB)

Students will use the triangle inequality theorem to determine whether 3 lengths can be used to make a triangle. The answers will be used to decode a riddle. *** This item is also available in the "Relationships Within Triangles VALUE PACK" ***
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\$1.50
19 Ratings
4.0

PDF (154.22 KB)

This foldable helps students use the Converse Pythagorean’s Theorem and Pythagorean's Inequalities to determine is 3 side lengths will form a right, obtuse, or acute triangle. I have included 2 sizes for the foldable. The smaller size works well in Interactive Student Notebooks(ISN). The next pa
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\$2.00
10 Ratings
3.9

PDF (1016.03 KB)

Nothing like a good criminal investigation to liven up math class! Based off my popular CSI projects, I have created Whodunnits? The Whodunnits plan to focus on single content topics as opposed to units and will focus more on skill building than application. Every day can't be a project day, so Wh
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\$3.00
19 Ratings
4.0

PDF (2.32 MB)

This is a packet which includes an activity that can be used to help students discover the triangle inequality theorem. What could be more fun - a math activity that includes eating licorice?? I have also included a brief worksheet with 6 problems that can be used to see if students understand the
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\$1.50
16 Ratings
4.0

PDF (836.84 KB)

This is a guided, color-coded notebook page for the interactive math notebook on Triangle Inequalities. Includes the Comparison Property of Inequality. Color-coded example and diagram on the Corollary to the Triangle Exterior Angle Theorem. Includes color-coded diagrams, vocabulary and geometric
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\$1.00
18 Ratings
4.0

PDF (3.45 MB)

Students will use the triangle inequality theorem to determine the range of possible numbers for the third side of a triangle, given the first two sides. The answers will be used to decode a riddle. *** This item is also available in the "Relationships Within Triangles VALUE PACK" ***
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\$1.50
17 Ratings
4.0

PDF (246.51 KB)

Triangle Inequality Theorem Flip Book: This resource includes a flip book on the triangle inequality theorem. The first flap has the actual theorem written out underneath it. The next flap has problems that can be done as a class where the theorem is used to determine rather 3 measurements can be t
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\$2.00
16 Ratings
4.0

PDF (2.39 MB)

In this teacher led discovery lab students will discover the conditions for triangles given side lengths and angle types. This is a hands-on introduction activity for 7th graders learning about the properties of triangles and the triangle inequality theorem. It includes an activity for a math inte
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Get this as part of a bundle: Triangle Inequality Theorem Activity Bundle 7.G.A.2

\$2.00
9 Ratings
3.9

PDF (10.28 MB)

Students will use the triangle inequality theorem to determine the range of possible measures for the third side of a triangle, given the first two sides. The answers will be used to decode a riddle. *** This item is also available in the "Relationships Within Triangles VALUE PACK" ***
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\$1.50
12 Ratings
4.0

PDF (145.52 KB)

This is a collection of 4 resources that will introduce and reinforce the triangle inequality theorem. Students will have an opportunity to discover the theorem and practice using it with engage and interactive activities. Included in the Pack: Triangle Inequality Theorem Sort and Paste Triangle I
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\$7.00
\$5.50
7 Ratings
4.0

Bundle

This activity contains a set of 12 task cards about The Triangle Inequality Theorem. An answer sheet is also included for students to show their work. The task cards can be utilized in a variety of ways including centers, partner work, individual assignments, small group instruction, etc. If you li
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\$2.00
6 Ratings
4.0

PDF (531.21 KB)

This is an activity that uses spaghetti to teach the triangle inequality theorem. It is a group activity that can work with groups from 2-4. It includes a teacher answer sheet with some suggestions as well as answers. It also includes a homework sheet. You could use it as an exit ticket or homewo
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\$3.00
5 Ratings
4.0

ZIP (336.43 KB)

Students practice triangle inequality theorem through multiple choice problems. Each answer corresponds with a color to complete a color-by-number Spring themed coloring page. Answer key included
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\$2.00
8 Ratings
4.0

PDF (446.46 KB)

This ready to use product is a quick, fun way to have your students practice the Triangle Inequality Theorem. Students will be given three side lengths and will need to classify them as creating a triangle or not creating a triangle. Instead of writing their answers, students will color them! You ca
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\$1.50
7 Ratings
4.0

PDF (849.87 KB)

Students will calculate the range of possible lengths for the third side of a triangle, given two existing sides. They will use their answers to decode a festive Thanksgiving riddle. *** This item is also available in the "Relationships Within Triangles VALUE PACK" ***
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\$1.50
7 Ratings
4.0

PDF (130.47 KB)

Finding all possible lengths of triangles and ordering line segments lengths from least to greatest by angle measures.
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\$4.00
7 Ratings
4.0

ZIP (699.57 KB)

Students enjoy this hands-on exploration, as they get to cut out the strips they need for the activity and play around with them to see what combinations of side lengths would make a triangle. Students can determine the Triangle Inequality Theorem on their own with the support of the strategic ques
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\$3.00
4 Ratings
4.0

PDF (1.39 MB)

A fun way for your students to discover the triangle inequalities. The teacher or students can provide angel hair spaghetti sticks to break into triangle pieces to discover what types of lengths will create a triangle. Also includes follow up questions and angle/side relationships. This ones always
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\$3.99
6 Ratings
4.0

DOCX (18.32 KB)

This product includes 20 task cards on inequalities in one triangle. (ordering sides and angles) Includes: a. GOOGLE SLIDES for GOOGLE CLASSROOM (paperless) b. PowerPoint and SmartBoard files c. Blue and Black versions to print. d. Absent student sheet e. Teacher Quick Reference sheet f. Recor
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\$1.75
6 Ratings
4.0

ZIP (7.28 MB)

Instead of giving my students a long lecture about the triangle inequality (the longest side is opposite the largest angle, the smallest side is opposite the smallest angle, and so forth), I just give them a "mini-lesson" about it and set them to work in cooperative groups. To classify triangles as
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\$4.99
5 Ratings
4.0

DOC (2.15 MB)

This is a coloring activity for a set of 12 problems. Problems 1 - 6 are list the angles in order from least to greatest and problems 7 - 12 are on ordering the sides from least to greatest. Students need to apply triangle sum theorem to find the missing angle first for problems 7 - 12. Posted:
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\$1.50
5 Ratings
4.0

PDF (223.54 KB)

This includes 2 mazes. Maze A is on ordering the angles from least to greatest and Maze B is on ordering the sides from shortest to longest. There are 2 designs to choose from. Both are shown in the preview. There is also a coloring activity on this topic. Posted: 1/22/17 so 50% off through 1
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\$1.00
5 Ratings
4.0

ZIP (476.3 KB)

This is a cooperative activity that is done through a gallery walk around the classroom. It reinforces the triangle inequality theorem in a partner activity that is very engaging for students. This resources includes: -6 stations with 2 questions each -Student record page -Answer key
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Get this as part of a bundle: Triangle Inequality Theorem Activity Bundle 7.G.A.2

\$2.00
2 Ratings
4.0

PDF (10.44 MB)

This is a challenging quick quiz that assesses students' ability to solve problems involving triangle side length and angle measure inequalities. It is a great tool to obtain fast feedback data to drive your instruction. In order to provide the best quality materials for the best teachers, please l
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\$1.00
\$0.90
3 Ratings
3.9

PDF (302.41 KB)

Geometry - Triangle Inequality Theorem Common Core Aligned Lesson with Homework This lesson includes: -Lecture Notes (PDF, SMART Notebook, and PowerPoint) -Blank Lecture Notes (PDF and SMART Notebook) -Homework (PDF) -Answer Key (PDF) You do not need to have SMART Notebook or PowerPoint to receive
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\$1.50
4 Ratings
4.0

ZIP (3.2 MB)

This lesson can be completed during a 90 minute block period or split into 2 one hour lessons. During this lesson students work in groups to make hypothesis about the triangle inequality theorems based on observations of triangles they have constructed from paper and straws. The handouts include i
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\$3.00
\$2.00
4 Ratings
4.0

PDF (123.45 KB)

"The mission of Common Core Math Solutions is to create engaging, highly effective resources for the math classroom" In this lesson students understand and apply the triangle inequality theorem. Example Question: A triangle has two sides of lengths 16 and 20. What is the smallest possible whole-
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\$2.00
3 Ratings
4.0

PPTX (229.86 KB)

Review poster/handout to give students after learning the Triangle Inequality Theorem. I give to my students as a review sheet and I have them glue it in their interactive notebook.
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CCSS:
\$1.50
3 Ratings
3.9

PPTX (51.25 KB)

Students will determine whether three side lengths will create a triangle. They will use their answers to decode a festive Thanksgiving riddle. *** This item is also available in the "Relationships Within Triangles VALUE PACK" ***
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\$1.50
3 Ratings
4.0

PDF (146.45 KB)

This is a discovery learning activity where students work in pairs or groups to determine what the relationship is between angle measures and the lengths of the opposite sides within a triangle. My students found an investigation activity more interesting than simply stating the theorem and it help
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\$1.50
3 Ratings
3.8

PDF (1.8 MB)

This is a set of 17 Triangle Mini-Quizzes that focus on Similarity, Special Line and Triangle Inequalities. Mini-quizzes are half - sheet quizzes that are perfect as formative assessment or quick summative assessment. Each quiz focuses in on just one topic so that you can tell quickly if the studen
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Get this as part of a bundle: Geometry Mini-Quizzes Money Saving BUNDLE!

\$3.00
2 Ratings
4.0

PDF (1.04 MB)

Do your students have trouble retaining geometric concepts? Help them understand by discovering them. This discovery learning activity provides guidance for students to discover the triangle inequality theorem (the lengths of sides for which it will be form a triangle). Included in this document
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\$2.00
2 Ratings
4.0

DOC (5.34 MB)

Students will calculate the range of possible lengths for a triangle, given two existing sides. They will use their answers to decode a festive Thanksgiving riddle. *** This item is also available in the "Relationships Within Triangles VALUE PACK" ***
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\$1.50
2 Ratings
4.0

PDF (115.42 KB)

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