Worksheet
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Differential Equation

For Students Higher Ed
In this differential worksheet, students answer three essay questions. They are presented a problem about the height of a tree being a function of the base diameter. Students write the equation for the differential equation, solve the...
Lesson Plan
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Timber Harvesting: A Civic Debate, Day 1

For Teachers 8th
Eighth graders develop an understanding of the strategies used in the sustainability of forests.  In this timber harvesting instructional activity students identify and analyze the importance of forests and their management...
Lesson Plan
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Timber Harvesting: A Civic Debate

For Teachers 8th
Eighth graders analyze and identify the importance of our forests and how to manage them properly.  In this tree instructional activity students read forestry material and come up with different alternatives to the identified...
Lesson Plan
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Noun/Adjective/Subject/Verb Agreement

For Teachers 5th - 8th
Students create a wheel from construction paper to use to create sentences. The wheel consists of four concentric circles, beginning with the largest being 8 inches in diameter. Each circle represents one part of a sentence. Students...
Lesson Plan
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Alien Plant Invasion: A Filed Study project at Saguaro National Park

For Teachers 9th - 12th
High schoolers are able to describe the purpose of National Parks and Monuments. They describe three ways alien plants species affect native populations of plants and animals. Students are able to properly set up a study plot, measure...
Worksheet
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Inscribed Angles and Arcs

For Students 10th
In this inscribed angles and arcs worksheet, 10th graders solve and complete 21 various types of problems. First, they find the measure of each inscribed angle. Then, students find the measure of each angle or arc in a circle with the...
Worksheet
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Water Velocity

For Students 7th - 10th
For this water worksheet, students use a graph comparing particle diameter with stream velocity to complete 6 fill in the blank questions.
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Six Activities Regarding Circles and Cylinders

For Students 9th - 10th
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...
Worksheet
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Parts of the Circle

For Students 6th - 8th
In this geometry skills activity, 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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Parts of the Circle

For Students 5th - 7th
In this geometry skills worksheet, students examine 3 labeled circles and identify the noted items as diameters, chords, radii, or centers.
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Parts of a Circle

For Students 7th - 9th
In this geometric shapes instructional activity, students respond to questions that require them to identify chords, radii, diameters and centers of 4 circles.
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Estimation

For Students 5th - 6th
In this estimation worksheet, students analyze a table with the diameter of four coins in fractional inches. Students solve 5 multiple choice problems in which estimating is used with fractions.
Worksheet
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Surface Area of Cylinder Worksheet

For Students 6th - 8th
In this surface area worksheet, students are given either the diameter or radius and the height of 8 cylinders. They calculate the surface area.
Worksheet
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Write the Parts of the Circle in the Place Holders

For Students 9th - 11th
In this parts of a circle worksheet, students place the names of 6 different parts of a circle in rectangular place holders. They use labels such as cord, secant, diameter, radius, tangent, and center.
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Circumference and Area

For Students 6th
In this circumference and area worksheet, 6th graders find the circumference and area of circles when the diameter is given. Students complete 9 problems.
Lesson Plan
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Measure the Earth's Circumference

For Teachers 5th - 12th
Students explore geometry by conducting a science experiment. In this circumference measurement lesson plan, students review the Greek geographer Eratosthenes who first discovered the circumference of our planet. Students utilize...
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Place Value to 10,000

For Students 3rd - 4th
In this ten thousands place worksheet, students review the table that shows the diameters of the largest moons in the solar system and the planet it orbits. Students use the table to help them understand numbers with a place value of...
Lesson Plan
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Viewing Tubes

For Teachers 6th - 8th
Students complete a lab in order to discover if the length of a viewing tube, its diameter, or the distance from an object affect the type of data collected and the resulting graph.
Lesson Plan
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View Tubes

For Teachers 8th
Eighth graders decide if the length of a viewing tube, its diameter, or the distance from an object affects the type of data collected and the resulting graph through a series of experiments.
Lesson Plan
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Sir Cumference and the Dragon Pi

For Teachers 6th - 8th Standards
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...
Lesson Plan
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Around and Across

For Teachers 10th
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.
Lesson Plan
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Determining Mercantile Volume of a Pine Tree

For Teachers 4th
Fourth graders, acting as foresters, determine timber volumes as sawtimber or pulpwood for marketing. They find the marketable value of a tree using its diameter and volume.
Lesson Plan
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The Derivation of (Pi)

For Teachers 7th
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.
Lesson Plan
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Around We Go

For Teachers 4th
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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