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Area and Circumference of Circles
Learners view two PowerPoints and practice computing the area and circumference of circles. They must use given formulas to make their computations. The lesson includes links to both PowerPoints as well as a worksheet (with answer key).
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Circumference and Area of Circles
In this circumference and area of circles learning exercise, learners find each to 1 decimal place of 12 given circles. A website reference for additional resources and answer key are given.
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Circumference and Area of Circles
In this circles worksheet, students use given radius or diameter measurements and find the circumference and area of circles to one decimal place.
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Perimeter and Circumference
Students understand the definitions for perimeter and circumference and know the difference. They then go over sample problems as a class. Students use drill and practice skills to complete activity pages.
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Making a Six-pointed Star
In this polygon instructional activity, students identify and create a six-pointed star by completing 6 steps. First, they use a compass to trace a circle with a given radius. Then, students draw a point on circumference of the circle...
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Pumpkin Play
Have you ever examined a pumpkin and estimated the number of lines it has? In this math lesson, students count the actual number of lines, record and graph the results. They investigate the circumference, weight and buoyancy of the...
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Around the Clock
Learners discover the relationship between the circumference of a circle and its diameter. They find the length of an arc of a circle.Students use estimation strategies in real-world applications to predict results (i.e., interpolation...
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Measuring Pumpkins and Our World
Students estimate the circumference of a pumpkin. They measure the pumpkin and other school objects, and record the measurements on worksheets.
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Tennis Ball Tubes
Students determine whether the height of a tennis ball tube or the distance around the tube is greater, or whether they are the same. Using the formula for the circumference and diameter of a sphere, they discuss the word problem, and in...
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Similar Triangles and Trapezoids, and Circles
High schoolers answer two problems involving area of shaded regions. Students then answers six questions involving perimeter, area, and circumferences. The remaining two questions involve ratios of similar figures.
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Circles and Cylinders
In this geometry lesson, 10th graders break down a circle and identify the different parts. They discuss chords, diameter, radius, circumference, major and minor segment. There are 42 problems broken down into 5 different sections.
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Are You Full of Hot Air?
Explore the concept of measuring and recording circumference. In this physical science and measurement lesson, young learners blow up balloons, measure the circumference, and record the data on an interactive graphing website.
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Circles: Geometry Review Worksheet
Tenth graders solve and complete 14 different geometry problems. First, they find the area and circumference of a circle with a given radius. Then, they find the area between a circle and an inscribed equilateral triangle given the...
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Looking at Circumference
Middle schoolers understand where the number for pi comes from. They understand and use the formula for circumference. Students measure the circles given out and the diameters of those circles and record the results on their worksheet.
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Pumpkin Predictions
It's time for Halloween and math! Perfect for Fall, this simple worksheet provides a grid for young mathematicians to record their predictions about a pumpkin's height, stem length, diameter, circumference, and weight. After learners...
Illustrative Mathematics
Stained Glass
A complex question looking for the total cost of a stained glass window by calculating area and circumference of a circle. With detailed components, this activity will challenge your designers to figure out if they have enough money to...
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Circumference of Circle Worksheets
In this online math worksheet, students determine the circumference of a variety of circles given their diameter. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A...
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Circumference of Circle
In this circumference worksheet, students find circumference. Radius and diameter are given, as well as an answer key. Workspace is provided.
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Circumference
In this circumference worksheet, students calculate the circumference of circles with equations including pie and measurements. Students complete 5 problems.
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Circumference and Area
In this circumference and area learning exercise, 6th graders find the circumference and area of circles when the diameter is given. Students complete 9 problems.
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Circumference and Area
In this circumference and area worksheet, learners find each for a set of 9 circles. A website reference for additional activities is given.
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Circumference of a Circle
In this circumference of a circle worksheet, 10th graders solve 10 different problems that include various illustrations of circles. First, they multiply pi by the given diameter of the circle. Then, students determine the radius by...
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Circumferences, Diameters, and Radii
Students explore circumferences, diameters, and radii. In this math lesson plan, students measure circumferences in inches and compute radii and diameters, given different circumferences.
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Circle Problems - Radius, Diameter, Circumference and Area
In this online math worksheet, students determine the radius, circumference, diameter and area of circles. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A...
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