Lesson Plan
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Real Numbers: Care Homework #8

For Teachers 7th - 8th
In this real numbers worksheet, students perform the given operation with decimals, whole numbers, and fractions. They find the area and perimeter of circles. Students determine the volume of cylinders. This three-page worksheet contains...
Lesson Plan
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Geometry, Pi, and Ancient Civilizations

For Teachers 8th - 9th
By working together, pairs of learners will complete a Pi webquest. Using the internet, they examine the ways people in the Ancient Civilizations of Egypt, Babylonia and Greece used Pi. To end the lesson, they review the concepts of...
Lesson Plan
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Connecting Formulas Related to Geometric Figures

For Teachers 8th - 12th
Students identify diagrams of quadrilaterals and circles by different names and classify the figures. They name the areas for each diagram and practice solving the formulas for each.
Worksheet
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Geometry and Triangles

For Students 11th - Higher Ed
In this geometry triangles worksheet, students first determine how many degrees are found in one half and in three-fifths a revolution. Then they find the supplement of the two angles given and the radius of a circle. Students also...
Worksheet
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Angular Size and Velocity

For Students Higher Ed
In this distance worksheet, students calculate the angular size or angular diameter of objects at a given distance. This worksheet has 6 problems to solve.
Worksheet
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Perimeter, Circumference and Area

For Students 9th - 11th
In this measurement worksheet, students identify the area, perimeter and circumference of a diagram. They also find the size of a pond based on the diagram shown on the sheet. Finally, students calculate how much carpet is needed to be...
Lesson Plan
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Discovering Pi

For Teachers 9th - 10th
Students relate Pi to a circle. In this circles instructional activity, students identify the different properties of two dimensional objects. They relate Pi to the circumference, diameter and area of a circle .
Lesson Plan
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Modeling Atoms

For Teachers 9th - 12th
Students create an atomic model using a computer program. In this technology lesson, students identify the difference between radius and diameter. They create circular patterns and spheres based on certain specifications.
Lesson Plan
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The Real Deal On Circles

For Teachers 5th
Fifth graders investigate circles and area. For this geometry lesson, 5th graders find the area, diameter and circumference of a circle. They estimate the data and then calculate it.
Lesson Plan
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Discovering Pi

For Teachers 6th
Sixth graders discover Pi.  In this discovering Pi lesson, 6th graders measure the diameter and circumference of various circular objects.  Students record their measurements in a table.  Students discuss how Pi relates to...
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Curated OER

Task: Grain Storage

For Teachers 7th - 10th Standards
Farming is full of mathematics, and it provides numerous real-world examples for young mathematicians to study. Here, we look at a cylinder-shaped storage silo that has one flat side. Given certain dimensions, students need to determine...
Lesson Plan
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Pi as a Ratio

For Teachers 8th
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...
Lesson Plan
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Parts of a Circle

For Teachers 6th
Sixth graders use yarn, paper plate, and other materials to identify parts of a circle. In this parts of a circle lesson plan, 6th graders identify the circumference, radius, diameter, and other parts of a circle.
Lesson Plan
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Sectors of Pizza

For Teachers 8th - 10th
Students identify the properties of a circle. In this geometry lesson, students relate properties of diameter to sections of a pizza. They calculate the measure of an arc and missing angles.
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...
Worksheet
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Formulas Homework

For Students 9th - 12th
In this circle formulas worksheet, high schoolers solve 20 fill in the blank problems. Students find the radius, diameter, circumference, area, arc length, and sector area of a circle.
Worksheet
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Length Lab

For Students 6th - 8th
In this science learning exercise, students identify and explain what each unit represents and how much each one equals. Then they use a metric ruler to locate each measurement and write it on the line. Students also locate the distance...
Worksheet
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Semicircles

For Students 10th
In this geometry worksheet, 10th graders are presented with a problem involving semicircles.  The diagram appears simple, though it turns out to have a many segments to be labeled with variables.  The key to solving the problem...
Worksheet
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3D Shapes

For Students 10th
In this 3D shapes worksheet, 10th graders solve and complete 6 various types of problems. First, they find the radius of a cylinder described. Then, students determine the volume of a pyramid shown. In addition, they find the volume of...
Lesson Plan
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Polygon People

For Teachers 6th - 8th
Learners identify polygons.  In this polygon people lesson, students draw required shapes and construct a polygon person.  They identify each shape and its characteristics.  The lesson may be extended by allowing learners...
Lesson Plan
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Moment of Inertia Contest

For Teachers 11th - 12th
Students design a wheel that can go down the ramp with the smallest moment of inertia. In this technology lesson, students construct their model using a computer program. They calculate the moment of inertia of their finished product.
Lesson Plan
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Surface Area of Cones

For Teachers 9th - 12th
Students find the surface area of cones. In this geometry lesson, students calculate the dimensions of each three-dimensional shape and use the correct formula to solve the problem. They relate concepts of cones to the real world.
Lesson Plan
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Circles and Clocks, Shapes and Time

For Teachers 4th - 6th
Learners work in groups to research clocks and practice telling time. In this telling time lesson, students use the computer program ProQuest to study circles, including radius and diameter, and practice drawing circles using a compass....
Lesson Plan
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Lesson Plan Outline for Rainbow Science

For Students 7th - 12th Standards
Young scientists study light reflection and refraction as they determine the critical angle, the rainbow angle, and color separation in rainbows. Teams record the data they collect in a shared spreadsheet and discuss results with the class.