Houghton Mifflin Harcourt
Similar Polygons and Circles
In these similar polygons and circles worksheets, learners complete 15 questions including 9 word problems regarding similar polygons. Students then complete 15 questions including 1 word problem involving circumference, area, and arc...
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Six Activities Regarding Circles and Cylinders
In this circles and cylinders worksheet, students complete six activities answering sixteen questions. These activities include a discovery of the ratio of circumference to diameter and the formula for area of a circle. The...
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Pumpkin, Pumpkin
First graders understand that pumpkins grow slowly over several months. In this pumpkin lesson, 1st graders listen to the book Pumpkin, Pumpkin and recall the sequence of the pumpkin life cycle. Students create pumpkin artwork showing...
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Native Lands: Indian in Georgia
Learners bring in vegetables that the Native Americans ate. In this vegetable lesson, students create a graph that shows how many learners brought in each vegetable. They measure their vegetable to find the length, circumference, and...
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Volume of Hemisphere
In this volume of hemisphere learning exercise, students compute the volume of 5 hemisphere when given either the radius or the circumference.
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Approximating Pi
Young scholars approximate Pi using the lower and upper bound for the constant. In this algebra lesson, students work in groups of two to graph a circle and approximate Pi using the circumference. They repeat their estimation until they...
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Radius, Diameter and Area
Students identify the radius and diameter of a circle. In this geometry lesson, students calculate the volume and area of a cylinder and circle. They relate the circumference of a circle to Pi.
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Discovering Pi
In this discovering Pi activity, 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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Exploring the Circumcenter of a Triangle
Students construct the circumcenter of a triangle. In this constructing the circumcenter of a triangle lesson, students construct a triangle using Cabri Jr. Students draw perpendicular bisectors of the sides of the triangle. Students...
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Properties of the Centers of a Triangle
High schoolers investigate properties of the four centers of a triangle and explore a special property of the circumcenter and orthocenter of a triangle. This lesson plan requires the use of Cabri, Jr.
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Standardized Geometry Test Practice
In this angles, lines and figures review worksheet, 10th graders solve and complete 33 standardized multiple choice problems. First, they use the Segment Addition Postulate to solve for a variable given an equation for each line. Then,...
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Regents Exam Questions G.G.21: Centroid, Orthocenter, Incenter, and Circumcenter
In this triangles worksheet, high schoolers solve 4 multiple choice problems. Students find the centroid, orthocenter, incenter, and circumcenter or various triangles.
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Discovering Pi
Students discover the formula for finding circumference using pi, and demonstrate it.
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Sir Cumference and the Dragon Pi
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...
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Basketball Measurements
In this basketball court measurements instructional activity, students 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...
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Around and Across
Tenth graders investigate the circumference and diameter of a circle. In this geometry lesson, 10th graders relate circumference to diameter. They create a scatter plot to estimate the value of pi.
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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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The Derivation of (Pi)
Seventh graders groups measure the diameter and circumference of each of the circular objects in the room. They record their results on their student worksheets and access a computer spreadsheet program to compile their results.
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Investigation of Pot Sherds
Fourth graders review their prior knowledge on the concept of pi. Using broken pieces of pottery, they calculate the circumference from a section of the circle. In teams, they compete against one another to get the most accurate...
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Perimeter and Area of Similar Figures
Students explore the relationships between similar figures. In this relationships between similar figures lesson, students discuss relationships between perimeter, circumference, area, surface area, and volume of similar figures through...
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Math Practice: Circles
In this circle worksheet, students solve 8 problems: finding percentage increase, finding differences in area and perimeter, finding circumference and area.
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Pi Mathematics
Students will measure common everyday objects in order to calculate pi. In this measurement lesson plan, students measure the circumference and diameters of objects and fill them into a chart which helps them calculate pi.
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Kool Kumara Lesson Plans
Learners explore and observe the plant world and acquire knowledge about the functional parts of plants. In this Kool Kumara lesson, students make observations and record specific data on a recording sheet. Learners estimation...
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Learning Lesson: The Shadow Knows II
Students discover and practice how to calculate the circumference of the Earth. They measure the length of their shadows and use the distance they are away from the equator to complete the calculations. They discuss winter or summer...
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