Curated OER
Circles And Cylinders
Students investigate some of the mathematical concepts involved in the study of circles. They first practice finding the circumference of a circle by finding the diameter and performing the calculation. The lesson delivery is done using...
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Word Problems that involve Circles
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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Parts of a Circle
In this parts of a circle worksheet, students check the correct answer, describing the labeled part of a circle as either diameter, chord, radius or center.
101 Questions
Car Caravan
Keep playing with those old toy cars! Pupils estimate the number of toy cars in an art installation. The only information they receive is a picture showing the toy cars arranged in concentric rings and the diameter of the overall...
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Discovering the Magical Pi
Middle schoolers calculate pi using data on the circumference and diameter of various objects. They define key vocabulary terms, measure the circumference and diameter of various circular objects, organize the data on a table or chart,...
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Geometry Review
In this geometry review worksheet, 10th graders solve and complete 33 different problems that include identifying various geometric figures and parts of a circle. First, they find the radius of each circle given its diameter. Then,...
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Finding the Sum of the Perimeters of 3 Small Circles
In this geometry activity, students find the sum of the perimeters of three small circles. These small circles are tangent to each other and to a larger circle. The centers of the small circles have their centers on the...
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Circumference Review
In this circumference lesson plan, learners review how to find the diameter and circumference of a circle, they apply their skills to a real life application. Students are presented with the task of determining the circumference of trees...
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Properties of Arcs, Lengths and Chords
Students differentiate between the different properties of arcs, arc lengths, chords, and chord lengths. In this circles lesson, students calculate the arc length of a given circle, and find the measure of the inscribed angles of a...
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Three for the Money: The Degree/Diameter Problem
Learners explore the degree, diameter, planarity, and size of graphs. In this degree, diameter, planarity, and size of graphs lesson plan, students try to construct a graph with more than 12 vertices that satisfy all other...
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LRO's First Image of Mare Nubium
In this scale image worksheet, students use an image taken by the LRO satellite of Mare Nubium to determine the scale of the image, the diameter of the smallest crater and a comparison scale drawing of a house.
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A Different Proof of the Law of Cosines
In this proofs worksheet, learners construct 1 proof of the law of cosines. Students construct a right triangle within a circle to prove the law of cosines.
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Circles
For this circles worksheet, 4th graders view and study 4 circles and then write down the radius or diameter of each circle and estimate the circumference.
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Circumference, Diameter, Radius
Sixth graders will determine the circumference, diameter, and radius of a circle. In this circle lesson plan, 6th graders will measure the appropriate amount to find these measurements on circles.
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Exploring Circles
In this exploring circles worksheet, 10th graders solve 10 different types of problems that are related to determining the different measures of a circle. First, they define a circle and its center. Then, students refer to the given...
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Graphs of Circles
In this graphs of circles worksheet, 10th graders solve and graph 10 different problems related to graphing various types of circles. First, they write the equations of a circle with a given center and radius. Then, students determine...
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Graphs of Circles
For this graphs of circles worksheet, 10th graders solve 10 different problems that include the graphs of circles with various measurements. First, they write the equation of a circle whose diameter is a given number and whose center is...
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Area of Circle Worksheets
In this geometry learning exercise, 10th graders calculate the area of circle give either the radius or the diameter. The one page interactive learning exercise contains ten questions. Answers and hints are included.
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Exploring Circles
For this exploring circles worksheet, 10th graders solve 12 different types of problems related to measuring circles in geometry. First, they refer to the figure on the sheet to name the center point, the three radii of the circle, the...
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Circle Relationships
Students explore circles. In this geometry instructional activity, students explore the relationship between the circumference of a circle, the distance a ball travels, and the number of rotations the ball must make in order to...
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Ara of Circles
Students identify the differentiate the different properties of circles and parallelograms. In this geometry instructional activity, students calculate the area of each solid and identify the formula. They relate Pi to the circumference...
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Circle Graphs
In this circle graphs learning exercise, learners solve and complete 8 different problems that include word problems referring to two different circle graphs shown. First, they follow the directions for each problem and complete the...
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Scale Model of the Solar System
Lead your class through the procedure to create a scale model of the solar system. This resource reinforces concepts of scale and the mathematics involved, as well as the planets. Attach paperclips and staples to index cards to show the...
Futures Channel
Folding Circles
Students investigate properties of circles. In this geometry lesson plan, students differentiate between similarity and congruence as they observe polygons. They investigate properties of two and three dimensional shape.