Curated OER
Calculate the Circumference
For this calculate the circumference worksheet, 7th graders find the circumference given the diameter of 4 circles; the formula and the answers are provided.
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Circle Area, Perimeter and Circumference
In this geometry skills worksheet, students respond to 7 questions that require them to find the area, perimeter, and circumference of circles.
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Find Radius/Diameter
In this geometry worksheet, students calculate the radius and the diameter of the five given circles. There is an answer key included.
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Formulas Homework
In this circle formulas activity, high schoolers solve 20 fill in the blank problems. Students find the radius, diameter, circumference, area, arc length, and sector area of a circle.
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Peter's Second String
Fifth graders determine the maximum area and range of areas of a rectangle with a given perimeter. They discuss a word problem involving perimeter and area as a class, investigate the word problem using a piece of string, and in small...
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The Circle of Life
Fourth graders examine how the different organisms living in an ecosystem affect one another. In groups, they research a specific ecosystem and present their findings to the class based on the type of organisms found in it. To end the...
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Circles and Pi
Students identify the relationship between the radius and Pi. In this geometry activity, students calculate the circumference and area of a circle. They create visuals to help them see how the circumference relates to Pi.
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Area Of Sectors
Student find the area of a sector of a circle. In this geometry lesson, students define the sector of a circle using a sketch. They find and identify examples of sector in the real world.
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Circumference of Circle
In this circumference worksheet, students find circumference. Radius and diameter are given, as well as an answer key. Workspace is provided.
Illustrative Mathematics
Designs
A resource that makes for excellent group work as students explore the area and perimeter of different complex designs made up of squares and circles. The commentary gives a clear definition of perimeter, but suggests that group members...
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Puck's Girdle
Fifth graders calculate the perimeters, areas, and volumes of everyday objects. They discuss the word problem involving Puck from the Shakespeare play "Mid-Summer Night's Dream," and invent and plan a method for solving the problem in...
Illustrative Mathematics
Hexagonal Pattern of Beehives
Young geometers and biologists investigate the math of nature in an activity that is just the bee's knees. Participants will study the tessellations of hexagons in a beehive, along with the natural rationale behind the specific shape....
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Cross Sections and Collision Times
High schoolers solve five problems including finding the cross sectional area of two bodies, determining the swept out volume of a moving body, finding the average particle volume of a body and determining the collision time for a body.
101 Questions
Canadian Thanksgiving Tradition
It's all about the portion size! Given a photo of a pumpkin pie, learners work to determine the number of calories that are missing. Supplemental information provides the angle of the piece that is missing as well as the nutritional...
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Math Handbook: Trigonometry
You'll be spinning in unit circles once you read through this jumbo-sized resource of everything you need to know about trigonometry. Each page has color-coded examples with explicit directions that detail the problems and formulas.
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Compound Shapes: Area and Perimeter
In this area and perimeter worksheet, students find each for a set of 6 compound shapes. An answer key is included on page 2.
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Radius, Diameter and Circumference
In this circle worksheet, students use a drawing of a circle. The diameter is given. Students find the radius, circumference and area of the circle. On the second problem, students are shown a circle with a hole inside it. They compute...
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Areas of Polygons
Students calculate the are of regular polygons. In this geometry activity, students create polygons on the computer and move it around to create different shapes. They explore the area of different polygons and how they inter-relate.
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Radians, Arc Length, and the Area of a Sector
In this college level geometry worksheet, students convert between degrees and radians. Students determine arc length and solve problems involving the area of a sector. The four page worksheet contains seventy-four problems. Answers...
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Surface Area of Cones
Learners find the surface area of cones. In this geometry lesson plan, 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.
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Volume and Surface Area
In this volume and surface area worksheet, students read about volume and area, then solve a set of problems arranged in increasing order of difficulty.
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Scale Factor- Surface Area and Volume
Students calculate the surface area and volume of shapes. For this geometry lesson, students create different scales and calculate the volume and area for each shape. They compare and contrast between the different scales and shapes.
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Phenomenological Pizza
Students explore measurement in terms of pizza toppings. For this math lesson plan, students draw a circle using string and a ruler, determine areas of different size circles, find how many two topping pizzas can be made using 14...
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3D Shapes
In this 3D shapes worksheet, 10th graders solve and complete 5 various types of problems. First, they find the area of the logo item shown. Then, students find the height of a cuboid given its length and width. In addition, they circle...