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The Surface Area of a Cylinder
Students find the circumference and diameter of several circles and calculate the surface area of cylinders. For this surface area of a cylinder lesson plan, students use rectangles and lids to make several cylinders. They calculate the...
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Measurement
Students identify and categorize different problem situations or contexts using one of  four measurements to solve the problem.  Through guided and independent practice, they discover ways to determine which measurement to use when...
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"Sir Cumference and the First Round Table" by Cindy Neuschwander
Students analyze characteristics of various 2 dimensional shapes and explore their properties and use various vocabulary terms to discuss geometric relationships.
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Square Circles
Young scholars analyze and demonstrate how a circle can be measured in square units and examine how diameter, circumference and radius are related.
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Around and Around
Young scholars create a spreadsheet to record information about circular objects. They measure and record information from a variety of objects. Students calculate the ratio of the circumference to the diameter of each object. They find...
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Geometry Review
Seventh graders explore basic geometric definitions involving angles, area, and circumference.  To reinforce basic geometric concepts, they play a "lightning Flash" card game.  Students discuss chores or jobs that require the use of...
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Creating a Basal Area Measuring Tape
High schoolers use formulas to design and create a table.  In this calculations lesson students create basal measuring tapes that will be used to measure woodlot stocking levels. 
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Integers and Measurement
In this integers and measurement worksheet, students solve 24 various types of problems as defined. They reduce all fractions to lowest terms. Then, students draw a diagram and show the measurements to the proper power and pi for the...
Mathematics Vision Project
Module 5: Modeling with Geometry
Solids come in many shapes and sizes. Using geometry, scholars create two-dimensional cross-sections of various three-dimensional objects. They develop the lesson further by finding the volume of solids. The module then shifts...
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Circles
In this geometry worksheet, learners solve problems by finding the diameter, radius and chord of a circle. They also solve for the area of the circle. There are 10 questions with an answer key.
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One-To-One: Consumer Math
In this consumer math activity, 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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Circles
Tenth graders explore and define the radius and diameter of a circle. In this geometry lesson, 10th graders calculate the circumference and area of a circle using real world objects and shapes. They discuss chords and lines tangent...
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THE AREA OF A CIRCLE
Students examine the relationship between circumference and diameter and how to use the formula to find the area of a circle.  In this circle lesson students divide into groups and complete an activity. 
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Geometry: Area
Pupils visit various websites to calculate the area of circles, triangles, rectangles, trapezoids, and parallelograms. They explore math problems and play interactive games dealing with geometry.
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"Where Does Pi Come From?"
Fifth graders explore geometry by exploring Pi. In this circle measurement instructional activity, 5th graders identify the relationship between the radius, diameter and circumference of a circle and how Pi is the key to unlocking any...
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Measurement, Perimeter and Area
Learners explore the concept of measurement.  In this measurement lesson, students collect data about themselves such as height, finger length, neck circumference, foot length, and other body measurements.  Learners cut squares...
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Geometry in Nature
Young scholars examine how the circumference, diameter, and the relationship of Pi of a circle are related. They count the summer rings of a tree to determine its growth.
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Task: Grain Storage
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...
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"Slice of Pi with Neo-Excel"
Learners 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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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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Investigation-On the Surface
Students compute the surface area of 3 geometric solids to determine the shape of package that would require the least amount of paper to wrap. In this geometry lesson, students work on a two-question assessment embedded in the plan. The...
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Who Let the Dogs Out?
Students calculate the perimeter and area of polygons. In this geometry instructional activity, students apply formulas of perimeter to solve geometric problems. They calculate the area of a dog fence and create ways to keep the dog in...
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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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Polygonal Strings
Sixth graders apply knowledge of how to calculate the area and perimeter of triangles. They determine why it is inappropriate to measure the area of land by its perimeter which is done in certain areas of New Guinea. They complete a...