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Lesson Plan
Mascil Project

Circular Pave-Stones Backyard

For Teachers 6th - 12th Standards
Pack the lesson into your plans. Young mathematicians learn about packing and optimization with the context of circular paving stones. They use coins to model the paving stones, and then apply knowledge of circles and polygons to...
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Workbook
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1
University of Utah

Geometry Part 2: Measurement in 2- and 3-Dimensions, Plane Sections of Solids

For Students 7th Standards
What kind of tree does a math teacher climb? A geometry! Here is a lesson that includes all the geometry resources you could ever wish for in one comprehensive workbook. Class members demonstrate what they have learned by determining the...
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Interactive
CK-12 Foundation

Displaying Categorical Variables: Spending Habits

For Students 6th - 10th Standards
Bar or circle graph—which is best? Given a circle graph and a total amount of money earned, pupils calculate the amount of money in each category. Learners use the calculated amounts to create a bar graph and compare the two displays.
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Worksheet
Curated OER

MAP Practice

For Students 9th - 11th
In this geometry activity, students create circle, line and bar graphs using different comparisons of events. There are 24 questions with an answer key.
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Lesson Plan
Illustrative Mathematics

Alike or Different Game

For Teachers K Standards
How are a circle and triangle alike? How are they different? These are the types of questions children will answer while playing this fun geometry game. Including a variety of conventional and unconventional shapes, this activity allows...
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Interactive
CK-12 Foundation

Equivalent Fractions

For Students 3rd - 6th Standards
An interactive made up of five questions tests scholars' knowledge of equivalent fractions. Two fraction circles with moveable parts assist mathematicians in finding solutions. Questions are multiple-choice with one discussion. 
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Interactive
CK-12 Foundation

Addition of Fractions

For Students 4th - 8th Standards
Five word-problems challenge mathematicians to add fractions. Interactive fraction circles assist scholars in problem-solving. Question types include multiple-choice, true or false, and a discussion.  
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Interactive
CK-12 Foundation

Differences of Fractions with Different Denominators

For Students 6th - 8th Standards
Subtracting fractions with unlike denominators is the focus of an interactive designed to boost mathematicians' problem-solving skills. Five questions challenge participants to answer multiple-choice and true or false questions with help...
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Worksheet
Curated OER

Construct, Bisect, Duplicate: Geometry Practice with Compass and Straight Edge

For Students 9th - 12th
Geometers employ a straight edge and compass to duplicate and bisect segments and angles, construct perpendiculars, parallel lines, figures, and circles with points of concurrency. Ample practice with 65 questions across 8 worksheets. No...
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Lesson Plan
Curated OER

Exploring Harmonic Conjugates

For Teachers 9th - 10th
High schoolers investigate harmonic conjugates using Cabri Software or the Ti Calculator to analyze harmonics. They explore different angles measurements as they move their circles around and solve problems.
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Lesson Plan
Curated OER

Chords of a Circle

For Teachers 9th - 12th Standards
Teach how to differentiate between chords and perpendicular bisectors. In this geometry lesson, students relate the properties of chords and circle to solving right triangle. They define what makes two chords congruent in side a circle.
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Lesson Plan
Curated OER

Equation of a Circle

For Teachers 9th - 12th Standards
Students write the equation of a circle. In this geometry lesson, students check the solution of a coordinate pair by evaluating them. They graph the circle given the equation and radius.
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Worksheet
Curated OER

Geometry: Basic Constructions

For Students 10th Standards
In this geometry learning exercise, 10th graders use a straightedge and a compass to construct congruent segments and angles, bisect a segment and an angle, construct perpendicular and parallel lines, construct tangents, circumscribe a...
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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, learners examine 3 labeled circles and identify the noted items as diameters, chords, radii, or centers.
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Interactive
Curated OER

Geometry

For Students 2nd - 3rd
In this geometry/math worksheet, learners name eight shapes by circling the name that best describes it. Students select the correct answer from 4 choices.
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Worksheet
Curated OER

Arcs in Circles

For Students 10th
In this arcs in circles worksheet, 10th graders identify 10 different circles and the measurement of their arcs. First, they determine the length of a minor arc to the nearest integer. Then, students determine the radius of a circle...
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Worksheet
Curated OER

Circles

For Students 10th
In this circles worksheet, 10th graders solve and complete 8 different types of problems. First, they find the measures of each segment given the center of a circle. Then, students find the length of a side of a triangle shown within a...
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Interactive
Curated OER

Area of Circle Worksheets

For Students 10th
In this geometry worksheet, 10th graders calculate the area of circle give either the radius or the diameter. The one page interactive worksheet contains ten questions. Answers and  hints are included. 
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Worksheet
Curated OER

Learning About Circles

For Students 3rd
In this geometry worksheet, 3rd graders practice drawing 5 circles by tracing dotted lines. They use the empty space to print circles independently. They examine shapes in a box at the bottom of the page before coloring 5 circles of...
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Worksheet
Curated OER

Circles

For Students 10th
In this circles worksheet, 10th graders solve 10 different problems that include determining various types of circles. They write the standard form of the equation of the circle with the given radius and center. Then, students solve each...
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Worksheet
Curated OER

Quiz: Angles in Circles - Angles Outside the Circle

For Students 10th - 11th
In this angles in circles worksheet, students explore angles outside a circle. Using given trigonometric ratios, they find the missing angle measurement or the length of a line. This one-page worksheet contains ten problems.
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Interactive
Curated OER

Word Problems that involve Circles

For Students 10th
In this geometry worksheet, 10th graders solve application word problems based on knowledge of a circle. The one page interactive worksheet contains four questions. Answers and hints are included. 
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Worksheet
Curated OER

Circles

For Students 10th
In this circles activity, 10th graders solve and complete 10 different problems that include various parts of a circle. First, they write the name of the designated coordinates in each. Then, students determine the diameter, chord,...

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