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Worksheet
Curated OER

Triangle Exercises

For Students 6th - 8th
For this math worksheet, middle schoolers determine the name for each triangle according to its classification. Then they create a truss construction model.
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Lesson Plan
Curated OER

Geo-Mat

For Teachers 1st - 3rd
Students review plane figures by playing a game that resembles "Twister." They listen to directions to locate a large example of the figure which is placed on the floor.
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Worksheet
Curated OER

Downtown Landmarks: geometry on Firstside

For Students 5th - 10th
In this geometry learning exercise, students look at a picture of downtown landmarks and identify different shapes, lines, and more. Students identify 18 items.
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Lesson Plan
Curated OER

Pythagorean Theorem

For Teachers 7th - 8th
Students explore the history of Pythagoras and his contributions to mathematics. In this middle school geometry lesson, students use one inch tiles to investigate the Pythagorean Theorem and to find the length of the sides of a right...
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Lesson Plan
Curated OER

TAKS 4th Grade Daily Upkeep 10

For Teachers 4th
In this math worksheet, 4th graders look for the answers to basic review problems that focus upon the skills of reading simple word problems, and applying the interpretation of data.
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Lesson Plan
Curated OER

Studying Special Segments in Triangles

For Teachers 8th - 10th
Pupils investigate special segments in triangles. In this geometry lesson, students graph, compare, estimate and predict findings based on their data. They differentiate between similarity and congruence of triangles.
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Worksheet
Curated OER

Tessellations

For Students 10th
In this tessellations worksheet, 10th graders solve 6 different types of tessellation problems that includes drawing. First, they define polygon, regular polygon, tessellation, regular tessellation, and semi-regular tessellation. Then,...
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Worksheet
Curated OER

Spelling List 27: Sight Words, R-Controlled Vowels, and Academic Vocabulary

For Students 2nd - 5th
In this spelling list learning exercise, students practice spelling words that are sight words, r controlled vowels, and vocabulary. Students practice spelling 21 words total.
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Lesson Plan
Curated OER

The Plane! The Plane!

For Teachers 5th
Fifth graders work with polygons.
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Lesson Plan
Curated OER

The Centroid : Balancing the History

For Teachers 10th - 12th
Students discover the centroid of a triangle based on Euclid's constructions. They explore locus of points of a median. They understand properties of the segments that form the median and areas of the smaller sections formed by the median.
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Worksheet
Curated OER

Geometry Wordsearch

For Students 5th - 7th
In this mathematical related worksheet, learners explore and analyze thirteen key terms associated with geometry in a word search puzzle.
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Worksheet
Curated OER

Pythagorean Theorem Homework

For Students 9th - 10th
In this Pythagorean theorem worksheet, students determine if given side lengths for right triangles, find the length of the missing side in right triangles, and find the length of the diagonals formed in boxes given side lengths.
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Lesson Plan
Curated OER

Triangle Classification

For Teachers 9th - 12th
High schoolers classify different types of triangles. In this geometry lesson, students identify and use properties of triangles. They differentiate between isosceles and equilateral triangles.
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Lesson Plan
Curated OER

Pass It On

For Teachers 5th
Fifth graders participate in a class activity that helps them learn some geometric terms along with their definitions. They describe relationships between two and three-dimensional shapes and analyze attributes and properties of...
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Lesson Plan
Curated OER

Geometry House!

For Teachers 4th
Fourth graders use computer drawing tools to create a house of geometric shapes.
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Lesson Plan
Curated OER

Forces Applied to an Object

For Teachers 4th
Fourth graders predict, observe, and compare what happens when a force is applied to an object. In this forces lesson, 4th graders complete a 'swinging hammer' activity to learn about forces and motion.
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Lesson Plan
Curated OER

Exploring Special Segments in Triangles

For Teachers 9th - 12th
High schoolers discover that four special segments have a common intersection point. They identify the position of the intersection point in triangles. They produce conjectures about areas of the divided triangles.
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Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Angles (Elementary)

For Teachers 3rd - 5th Standards
In this lesson students will learn what determines whether an angle is acute, obtuse or a right angle.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Classifying Right Obtuse or Acute by Angle Measure

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on how to classify triangles based on angle measures.
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Lesson Plan
Oswego City School District

Regents Exam Prep Center: Angles and Triangles

For Teachers 9th - 10th Standards
On this site a viewer can learn about the different types of triangles, and categorized by either angles or sides. Tutorials are also included for interior and exterior angles of triangles. A teacher resource page includes a lesson plan...
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Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Angles

For Teachers 3rd - 8th Standards
This upper elementary and middle school lesson plan introduces the concept of acute, obtuse and right angles. Also, as the lesson proceeds vertical, adjacent, alternate interior and alternate exterior angles are explored. Plenty of...
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Handout
Math Open Reference

Math Open Reference: Angles

For Students 9th - 10th Standards
Everything you wanted to know about angles and more, including 1) how to measure angles 2) types of angles 3) angle relationships and 4) angles around a transversal.
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Activity
Shodor Education Foundation

Shodor Interactivate: Angles

For Students 6th - 8th Standards
The activity allows students to practice identifying different types of angles. An interactive activity and teacher resources are included.
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Interactive
Math Playground

Math Playground: Estimate the Angle

For Students 3rd - 5th Standards
Practice estimating the angle by sliding the blue "X" button up and down to open and close the angle. See how many aliens you can zap with the correct answer. Your total correct out of 10 is listed just below the problem.

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