Curated OER
Calculate Area Using Pi
Geometers find the area of four circles given their circumferences. Circumference is presented in the form of "numeral (diameter) x pi"; the answer key shows solutions as "numeral (radius squared) x pi," so computation is...
Curated OER
Quiz: Area of a Circle
Geometers test their mastery at finding the area of a circle with 10 basic problems. Circle diagrams show line segments, points, and diameter. Distance of radii are given. They use pi as 3.14 to calculate the area. No answer key is...
Curated OER
Circumference and Area of Circles (B)
In this geometry worksheet, students calculate the area and circumference of 12 circles in which either the diameter or radius is shown. There are no formulas given on this page.
Curated OER
Circumference and Area of Circles
In this circles worksheet, students use given radius or diameter measurements and find the circumference and area of circles to one decimal place.
Curated OER
Learning About Volume
Learners explore the concept of volume. They develop formulas for volume of prisms. Then use their formulas to find missing dimensions of various prisms such as height, length, width, radius, and diameter.
Curated OER
Circumference and Area of Circles
In this circumference and area instructional activity, learners find each for a set of 12 given circles; either diameter or radius are given. A website reference for additional resources and answers are provided.
NASA
Earth, Earth’s Moon, Mars Balloons
Very specific diameters are given for blowing up three different balloons to represent, in scale, the moon, Earth, and Mars. In groups of three, amateur astronomers explore scale measurements and distance in space.
Marilyn Burns Education Associates
Eighteen Flavors
Your learners will be tantalized by this inquiry-based, collaborative activity as they discover how to write an equation that represents the height of an ice cream cone. Given the scenario based on the poem, "Eighteen Flavors," and...
Curated OER
LET'S INVENTORY THE SCHOOL FOREST
Students study how to estimate the diameter of a tree, estimate the height of the tree using shadows, estimate the height of the tree using a ruler, and use tools for measuring trees.
Curated OER
Math: Arcs and Chords
Students draw diagrams demonstrating how it is possible to two central angles to be congruent and their minor arcs are not congruent. In groups, they illustrate theorems with their constructed circles, create diameters of circles that...
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Exploring a Galaxy
In this galaxy worksheet, students use the Internet or other resources to answer 13 questions about the galaxy NGC-1232. They are given a photograph of the galaxy to help determine the width and diameter of certain regions of...
Curated OER
Geometry Worksheets-volume of Sphere
In this geometry worksheet, 10th graders determine the volume of a sphere, given the diameter or the radius. The one page interactive worksheet contains eight questions. Hints, clues, and answers are provided.
Curated OER
The Surface Area of a Cylinder
Students find the circumference and diameter of several circles and calculate the surface area of cylinders. In this surface area of a cylinder lesson plan, students use rectangles and lids to make several cylinders. They calculate the...
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Circles
In this geometry worksheet, students 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.
Curated OER
Spheres
In this geometry activity, 10th graders determine the surface area and volume of a sphere, given the diameter or the radius. The one page interactive activity contains ten questions. Answers are provided.
Curated OER
Search for the Missing Pi
Third graders work in groups of two to three with measuring tapes, finding the circumference and diameter of teacher-selected circular items. They relate circumference and diameter measurements to find pi.
Curated OER
Volume and Surface Area
In this volume and surface area worksheet, 10th graders solve and complete 10 different word problems that include measuring various solids and cylinders. First, they determine the surface area of a cube and the edge of it. Then,...
Curated OER
Chandra Explores Angular Size
For this angular size worksheet, high schoolers read about how astronomers determine the size of objects in the sky by using their angular size. Students are given equations that allow scientists to convert the angular size into...
Curated OER
Discovering Pi
Students relate Pi to a circle. In this circles lesson plan, students identify the different properties of two dimensional objects. They relate Pi to the circumference, diameter and area of a circle .
Curated OER
Pan's Highway-Saturn's Rings
In this Pan's highway worksheet, students read about the Cassini spacecraft that discovered how Pan clears out the ring debris in the outer A-ring system of Saturn. Students use an image taken by the satellite to find the scale of the...
Curated OER
A Galaxy Up Close
In this Sombrero Galaxy worksheet, students observe infrared images taken by the Spitzer Infrared Telescope and the Hubble Space Telescope. They answer 9 questions about the details of the images such as the radius of the stellar...
Curated OER
The Effects of Meteor Impacts
Students investigate meteor impacts on the Earth's surface by using different size balls and charting their impacts, given their diameter and mass.
Curated OER
The Last Total Solar Eclipse...Ever!
In this total solar eclipse learning exercise, students solve 7 problems about the angular size of the moon, the distance the sun and moon should be to match in diameter, the number of years it will take for the moon to be at a certain...
Curated OER
Craters are a Blast!
In this craters worksheet, students solve 3 problems including converting units of Joules into a number equivalent to a one-megaton nuclear bomb, finding the diameters of craters in a given picture and determining the energy needed to...
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