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Worksheet
Curated OER

Chapter 7 Final Review Extra Problems

For Students 9th - 11th
In this Geometry review worksheet, students describe the relationships of two common triangles. They find the area of a segment created by a given sector of a circle for two circles. Students find the length of an arc bounded by the...
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Lesson Plan
Curated OER

Chords of a Circle

For Teachers 10th
In this geometry worksheet, 10th graders calculate the length of a chord and the distance from the center of a circle or radius. They compare diameter, chords and radius. There are 10 questions with an answer key.
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Lesson Plan
Curated OER

To the Moon

For Teachers 6th - 12th Standards
Pupils explore circumference manipulating Moon Pie wrapper. In this geometry lesson, they manipulate snack wrappers to find circumference, diameter, radius and distance.
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Lesson Plan
Curated OER

Modeling Atoms

For Teachers 9th - 12th
Students create an atomic model using a computer program. In this technology lesson plan, students identify the difference between radius and diameter. They create circular patterns and spheres based on certain specifications.
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Worksheet
Curated OER

Definitions of Parabolas

For Students 11th
In this algebra worksheet, 11th graders identify parts of a parabola and circle. They solve systems of equations and answer questions about radius, foci and conics. There are 20 questions on this test. 
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Worksheet
Curated OER

Modeling a Planetary Nebula

For Students 12th - Higher Ed
For this modeling a planetary nebula worksheet, students use a diagram to calculate the intensity at different radii from the center of the nebula. Students use the Pythagorean Theorem to determine the distance between two points on the...
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Activity
Curated OER

Pi Day: The Other Math Holiday!

For Teachers 9th - 12th Standards
Happy Pi Day! This collection of games, experiments, and activities leads participants through an exploration of the many aspects and attributes of that mysterious quantity, pi. Activities range from using statistical experimentation to...
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Worksheet
Curated OER

Chapter 7 Final Review Extra Problems: Triangles

For Students 9th - 12th
In this triangles worksheet, high schoolers respond to 4 short answer problems. Students describe side relationships of different types of triangles. High schoolers find the area of a segment formed by a sector.
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Lesson Plan
Curated OER

Pi

For Teachers 6th
Sixth graders read the book "Sir Cumference and Knights of the Round Table" to introduce them to the concept of Pi. As a class, they discover where Pi originated and define the terms circumference, radius and diameter. To end the...
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Lesson Plan
Curated OER

Noun/Adjective/Subject/Verb Agreement

For Teachers 5th - 8th
Learners create a wheel from construction paper to use to create sentences. The wheel consists of four concentric circles, beginning with the largest being 8 inches in diameter. Each circle represents one part of a sentence. Students...
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Worksheet
Curated OER

Parts of the Circle

For Students 6th - 8th
In this geometry skills worksheet, students respond to 3 questions that require them to examine the part of circles and identify them as diameters, chords, radii, or centers.
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Worksheet
Curated OER

Parts of the Circle

For Students 5th - 7th
In this geometry skills worksheet, students examine 3 labeled circles and identify the noted items as diameters, chords, radii, or centers.
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Worksheet
Curated OER

Write the Parts of the Circle in the Place Holders

For Students 9th - 11th
In this parts of a circle worksheet, students place the names of 6 different parts of a circle in rectangular place holders. They use labels such as cord, secant, diameter, radius, tangent, and center.
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Lesson Plan
Curated OER

Sir Cumference and the Dragon Pi

For Teachers 6th - 8th Standards
Geometry adventurers study circumference of a circle as they listen to Sir Circumference and the Dragon Pi, by Cindy Neuschwander. In groups, they use string to measure the diameter and circumference of circular objects and then consider...
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Worksheet
Curated OER

Parts of the Circle

For Students 5th - 6th
In this parts of a circle worksheet, students correctly identify labeled parts of circles, choosing from diameter, chord, radius or center. A reference web site is given for additional activities.
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Worksheet
Curated OER

Parts of the Circle

For Students 5th - 6th
In this circles instructional activity, students complete multiple choice questions, determining whether diameter, radius, chord or center is shown on a circle. A reference web site is given for additional activities.
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Worksheet
Curated OER

Parts of a Circle

For Students 4th - 6th
In this parts of a circle learning exercise, students check the correct answer, describing the labeled part of a circle as either diameter, chord, radius or center.
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Lesson Plan
Curated OER

As Easy As Pi!

For Teachers 6th - 8th
Young scholars conduct a scavenger hunt to find circular objects at home, then use the objects to find the pattern of pi.
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Lesson Plan
Curated OER

Lesson Plan Outline for Rainbow Science

For Students 7th - 12th Standards
Young scientists study light reflection and refraction as they determine the critical angle, the rainbow angle, and color separation in rainbows. Teams record the data they collect in a shared spreadsheet and discuss results with the class.
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Activity
Illustrative Mathematics

Use Cavalieri’s Principle to Compare Aquarium Volumes

For Teachers 9th - 10th Standards
Learners are designing a stunning new water feature for an aquarium, but they soon discover that more than just a pretty home for their fishy friends is required.  From calculating the volume of a composite shape through the abstract...
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Worksheet
Helping with Math

Supplementary Angles

For Students 4th - 6th Standards
Pupils calculate the measurement of supplementary angles when one angle is known. The one-page assignment has six simple problems. It contains links to related resources as well as the answer key. Be aware that although the publisher...
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Lesson Plan
Curated OER

Perimeter and Circumference

For Teachers 5th - 8th
Students consider perimeter and circumference. In this lesson on perimeter, students will determine relationships between perimeter and circumference using real life examples.
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Lesson Plan
Curated OER

Angles, Triangles, Quadrilaterals, Circles and Related

For Teachers 6th - 8th
Students classify angles. In this angles lesson, students explore the characteristics of angles, triangles, quadrilaterals and circles. They identify polygons and sing a classifying angles song. Students participate in a manipulative...
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Worksheet
Helping with Math

Angles: Supplementary, Corresponding & Alternate (2 of 2)

For Students 6th - 8th Standards
In the second of two similar worksheets, anglers compute missing angles when given an alternate, supplementary, or complementary value. There are six problems to solve, but each of them requires two to four solutions. This is a nice...