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Sectors of Pizza
Students identify the properties of a circle. In this geometry activity, students relate properties of diameter to sections of a pizza. They calculate the measure of an arc and missing angles.
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Around We Go
Fourth graders investigate a range of circles, each with a different radius, diameter and circumference and assemble this information in their search for relationships.The measurement of circles and the relationships to be found within...
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Rational and Irrational Numbers 2
Is the circumference of a circle always, sometimes, or never rational? Learners answer questions individually and also work in groups to look at sums and products of rational and irrational numbers. They must also be able to use the...
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Proving the Area of a Disk
Using a similar process from the first lesson in the series of finding area approximations, a measurement resource develops the proof of the area of a circle. The problem set contains a derivation of the proof of the circumference formula.
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Effects of Changing Dimensions Proportionally
In this geometry worksheet, students describe the effect of a proportional change on the perimeter or circumference and area of the given circles or quadrilaterals. The one page worksheet contains ten problems. Answers are included.
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Model Air Plane Acrobatics
Your young airplane enthusiasts will enjoy this collaborative task of graphing an airplane's distance from the ground as it flies in a perfect circle. They will discover that they have graphed a sinusoidal function that comes from the...
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Pi as a Ratio
Eighth graders measure the circumference and the diameter of circular objects and record the measured values of the circumference and the diameter in a table. They then record their measurements in centimeters and use their data to...
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Wheeling Around
Eighth graders explore the characteristics of a circle and the formulas to find circumference. They use a bicycle wheel to determine the circumference around a wheel. They utilize a worksheet imbedded in this plan which has a variety of...
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Discovering Pi
Fourth graders are introduced and experiment with the concept of pi. Using this information, they discover the relationship between the circumference and diameter of circles. In groups, they practice measuring the circumference of...
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Basketball Measurements
In this basketball court measurements worksheet, learners complete16 various types of problems using the illustrated basketball court at the bottom of the sheet. They find the diameter and radius of the smaller jump circle on the court....
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"Slice of Pi with Neo-Excel"
Students explore diameter, radius, and circumference. They define radius, diameter, and circumference on an online dictionary, identify objects in the room with a radius and a diameter, and calculate the radius and diameter of various...
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Finding Area
Seventh graders explore the concept of area. In this area lesson, 7th graders determine what measurements are necessary to find the area of a rectangle and circle. Students use area formulas to calculate area or rectangles and circles.
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Care Homework #2
In this Care Homework worksheet, students solve a variety of multiple digit addition, subtraction, multiplication, and division problems that include fractions, decimals, and percentages. They demonstrate knowledge of geometric formulas...
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Pumpkin Math
Students examine a pumpkin and make several estimations based on the number of lines around it, its circumference and the number of seeds it has.
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Spaghetti Measure
Students receive a copy of a "Spaghetti Measure" task sheet along with the scoring rubric. Students preview the task and the rubric prior to starting the task. tudeThey determine the circumference of a circle of spaghetti that will...
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"Where Does Pi Come From?"
Fifth graders explore geometry by exploring Pi. For this circle measurement lesson, 5th graders identify the relationship between the radius, diameter and circumference of a circle and how Pi is the key to unlocking any circular...
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Challenge: Skills and Applications Lesson 1.7
In this geometry worksheet, learners find the circumference of a circle. They find the perimeter and area using the correct formula. There are 8 questions.
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Calculate the Radius
In this radius worksheet, students calculate the radius of a circle when the area is given to them. Students complete 5 problems total.
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Discovering Pi
In this discovering Pi worksheet, students read about finding Pi, then find diameter and circumference of circles. Text page numbers are referenced, but no text name is given.
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One-To-One: Consumer Math
In this consumer math worksheet, students count the number of butterflies in a group and draw a line to match the same number of flowers in a group. Students match four groups so that there is the same number of butterflies as flowers in...
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New York State Testing Program
In this state testing worksheet, students solve problems on a variety of topics studied throughout the year. They find the median, solve algebraic equations, solve proportions, simplify expressions, find percents, and complete...
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MCC - 1106 Word Search
Use this geometry instructional activity to have learners locate and identify various vocabulary terms related to mathematics. There are seven words/phrases located in the puzzle.
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Intro to Circles
Seventh graders participate in an investigation into the concept of a circle. Finding the definition of a circle and how they are used in the real world is discussed. Then students write their own real world examples of circles.
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Hexagoning the Circle
Students explore similarity to see that the area of a circle should be a constant times the square of its radius. Students create a hexagon. Students share their designs with the class.
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