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Triangle Inequality Investigation
This powerpoint leads students through an investigation that will show them if any three lengths will make a triangle. The students use pipe cleaners cut into certain lengths to see if they can make a triangle. You could also use string, yarn, tape, or straws.
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Triangle Inequality Investigation
Students use spaghetti noodles to explore the Triangle Inequality Theorem and the Triangle Angle-Side Relationship Theorem. Each group needs 4 sticks of spaghetti that they cut to different lengths using a ruler and scissors. This is a Flipchart file also converted to PDF for a slide show.
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Triangle Inequality Investigation for Geometry
This activity allows students to investigate real-world distances in order to discover The Triangle Inequality: the length of the third side of a triangle must be greater than the sum of the first two sides. This is a fun activity for students. After completing this activity I have them create th
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Triangle Inequality Theorem - Investigation, Guided Notes, and Assignment
***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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Triangle Inequality Theorem Maze
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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Whodunnit? -- Triangle Inequality Theorem - Skill Building Class Activity
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 Whod

Also included in: Whodunnit? -- GEOMETRY CURRICULUM BUNDLE - 28 Skill Building Activities

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Triangle Inequality Theorem
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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Pythagorean & Triangle Inequality Theorems Card Sort
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.How It WorksStudents will cut out the 20 boxes and the

Also included in: Right Triangles & Trigonometry Activity Bundle

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Triangle Inequalities for Sides and Angles Discovery Activity
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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Triangle Inequality Theorem Maze
Students use the Triangle Inequality Theorem which states that the sum of any two sides of a triangle must be greater than the third to find a path through the maze. Students can also challenge one another by creating their own maze and key. Also see http://systry.com/triangle-musings/ for two fre
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Triangle Inequality Lab Activity
Students use measured pieces of spaghetti to investigate the triangle inequality theorem and make a conjecture about what must be true about the side lengths of a triangle.
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Triangle Inequalities Guided Notes
This 3 page document is a set of guided notes for teaching triangle inequalities and how to compare sides and angles of a triangle. Go through the notes with the class as student write in the notes. Includes problems called "Am I a Triangle?" and listing sides and angles in order from shortest to
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Triangle Inequality Activity
This hands on activity allows Geometry students to investigate the relationship between the sides of a triangle. Why can't we make a triangle out of lengths 3, 5 and 10? Find out with this activity!
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Whodunnit? -- ALL OF THEM -- Grades (9-12) - 90+ Activities - Math Curriculum
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 Whod
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Whodunnit? -- GEOMETRY CURRICULUM BUNDLE - 28 Skill Building Activities
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 Whod
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Triangle Side Inequality Theorem Discovery Activity & Practice
Through a hands-on activity, students will discover the Triangle Side Inequality Theorem (sum of any two sides must be greater than the third side). Students will use manipulatives to determine which combinations of sides will form triangles. Discovery Activity details: ➡ 10 investigative examples
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Right Triangles & Trigonometry Task Cards
This is a set of 24 Task Cards (with & without QR codes) to help strengths students’ skills in working with all the theorems and properties of right triangles and trigonometry in a Geometry class. The task cards do not say which property/theorem is needed so students need to be able to recogniz

Also included in: Right Triangles & Trigonometry Activity Bundle

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Relationships Within Triangles VALUE PACK
This Geometry VALUE PACK contains 16 products that explore the various relationships found within triangles (special segments, inequalities, angle sum, etc.). This VALUE PACK includes: -Triangle Inequality Riddle Time #1 -Triangle Inequality Riddle Time #2 -Triangle Inequality Riddle Time #3 -Trian
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Angles in Triangles Notes
Guided notes with answer key. Great for interactive notebooks. Full page and half size notes included in download.These notes help students investigate that the angles in a triangle add up to 180 degrees by having students rearrange the angles of a triangle to form a straight angle. Page of triangl
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Common Core Geometry quizzes for the entire year.  85 quizzes total
The quizzes are aligned with the 23 Modules of Houghton Mifflin Harcourt Common Core Geometry textbook. For each quiz there are a number of more difficult extra credit problems. . You can easily modify each quiz by merely using Microsoft Word. 1.1 Segment Length and Midpoints 1.2 Angle Measure
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Big Ideas Math Geometry: Unit 3: Triangles: Differentiated Bundle
This PDF includes an organized list of the sections along with links to all of the resources I use for the entire unit. As I update my worksheets to improve them, the links will update as well. Most of my worksheets include guided notes, practice problems, differentiated homework, and a QR code so k
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Investigating Relationships within Triangles - A GeoGebra Activity
GeoGebra is an interactive geometry, algebra, statistics and calculus application, intended for learning and teaching mathematics. This activity allows students to investigate triangle theorems, including the triangle inequality, using the GeoGebra application.
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Geometric Drawing and Scale Bundle (PowerPoint Lessons and Printables!)
"The mission of Common Core Math Solutions is to create engaging, highly effective resources for the math classroom" Unit Objectives: 1) Review and apply the concepts of corresponding angles and sides 2) Solve a variety of problems involving the concept of scale 3) Draw, construct, and describe ge
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AIMS Activity: Triangle Surrounded by Squares
Students will use the sides of squares to surround a triangular area, compare the areas of the squares, and find an inequality or equation for each type of triangle (acute, right, obtuse). Includes two investigations and one comic. For more AIMS Activities visit us at: http://www.aimsedu.org/catego
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