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1,116 reviewed resources for circumference

Lesson Planet

The Circumference of a Circle and the Area of the Region it Encloses

For Teachers 6th - 8th Standards
Bring your math class around with this task. Learners simply identify parts of a given circle, compute its radius, and estimate the circumference and area. It is a strong scaffolding exercise in preparation for applying the formulas for...
Lesson Planet

Circumference and Areas of Circles

For Teachers 7th - 12th Standards
Middle and high schoolers listen to a scenario about a puppy and use the scenario to develop formulas in order to find the area of a circle. In this circumference lesson, pupils understand how to find the radius, diameter, area of a...
3:13
Lesson Planet

Circumference: Lesson

For Students 6th - 10th Standards
It all depends what is given. The section of a large geometry playlist discusses the two formulas for finding the circumference of a circle. With the aid of the formulas, the presenter demonstrates finding the distance around circles in...
Lesson Planet

Circumference and Diameter Relationship

For Teachers 6th - 8th Standards
With a ruler and a piece of string, geometers measure the circumference of a circular object. Tracing and folding it, they find the diameter of the resulting circle so that they can relate it to the circumference. It is recommended that...
1 In 1 Collection 4:21
Lesson Planet

Find the Circumference of a Circle

For Students 6th - 9th Standards
Solving for circumference is an easy as one, two, pi! Show your learners what pi is and how to use it in an equation. This second video in a series uses the circumference and the radius as a ratio to show that 3.14 is a constant in these...
EngageNY

Families of Parallel Lines and the Circumference of the Earth

For Students 9th - 10th Standards
How do you fit a tape measure around the Earth? No need if you know a little geometry! Pupils begin by extending their understanding of the Side Splitter Theorem to a transversal cut by parallel lines. Once they identify the proportional...
Lesson Planet

Area and Circumference 1

For Students 9th - 12th Standards
Have the class describe the relationship of the area and perimeter of inscribed polygons and the area and circumference of the circle. Pupils investigate the relationships of areas and perimeters of inscribed regular polygons and circles...
7:56
Lesson Planet

Circles, Circumference and Area

For Students 4th - 8th Standards
Put pi to work. The video provides the formulas for the circumference and area of circles. Using the formulas, the presenter shows how to distinguish the two using units. The discussion leads to the second formula for finding the...
Lesson Planet

Circumference & Area Worksheet 1

For Students 6th - 9th Standards
Don't stress about creating your own problems and use this series of circumference and area worksheets. The problems ask pupil to plug diameter and radius into the formula to solve for area or circumference. The problems also have...
Lesson Planet

Circumference & Area Worksheet 2

For Students 6th - 9th Standards
With plenty of problems to chose from, this series of worksheets provides you different types of area and circumference problems. Your learners can plug diameter and radius in to solve, or they can work backward when the area or...
Lesson Planet

Circumference & Area Worksheet 3

For Students 6th - 9th Standards
You can't go wrong with this series of practice problems about circumference and area. The answer keys are provided, so you can use some or all of the problems without needing to worry about solving beforehand. Some problems have your...
6:29
Lesson Planet

Circumference

For Students 6th - 12th Standards
Circumference and diameter differ by just a factor of pi. A short video shows viewers how to calculate circumference given the diameter. It also gives an example of determining the diameter given the circumference.
Lesson Planet

Circumference of a Circle

For Students 6th - 9th Standards
Save trees and practice calculating the circumference of circles with this online interactive task! Of course, if you want individuals to turn it in, you will still need to print copies. There are 20 problems to solve, all of which...
3:26
Lesson Planet

Formulas for Circle Area and Circumference: Simple as Pie

For Teachers 6th - 7th Standards
Calculating circumference is as easy as pi times diameter. A short video explains how to measure pie tins using the diameter. It also describes the relationship between diameter and circumference. Using the knowledge, scholars consider...
4:29
Lesson Planet

Angles at the Centre and Circumference – Proof

For Students 6th - 12th Standards
Scholars ponder the proof relating the center angle and circumference using a demonstrative video. Additional worksheets and textbook practice helps them demonstrate their intellect.
Lesson Planet

Discovering the Formulas for Circumference and Area of a Circle

For Teachers 9th - 12th Standards
Find formulas using direct measurements and reconstruction. Groups use diagrams of circles and measure their circumferences. With several examples, classmates determine the constant of variation, pi. Pupils continue exploring circle...
5:25
Lesson Planet

Circumference of a Circle

For Students 9th - 12th Standards
Apple, cherry, pecan, or circumference: so many different uses for pi! Delve into the calculations relating to the circumference of a circle. The instructor applies the circumference formula to three different types of problems.
Lesson Planet

Area and Circumference of Circles

For Students 8th - 10th Standards
Don't go around and around, help your class determine amounts around and in a circle with a video that connects circumference to the perimeter or the distance around an object. The resource includes 14 questions dealing with circles and...
Lesson Planet

Area and Circumference 3

For Students 9th - 12th Standards
Use the previous assumptions to derive the commonly known formulas. The resource provides the prior assumptions, and pupils use these assumed facts to derive the familiar formulas for the area and circumference of a circle. The scholars...
10:16
Lesson Planet

Circumference, Volume of a Cone, Pythagorean Theorem (L1.5)

For Students 8th - 11th Standards
There's a formula for that. An educational video shows viewers how to apply geometry formulas to solve problems. It covers the formulas for the circumference of a circle, volume of a cone, and the Pythagorean Theorem.
Lesson Planet

Circumference

For Teachers 6th
The difference between circumference and radius is the focus of this geometry activity. After entering data into a spreadsheet which has the formula for circumference of a circle built into it, pairs of learners perform a hands-on...
Lesson Planet

Geometry: Area, Scale Factor, Circumference

For Teachers 5th - 8th
In this geometry worksheet, young scholars solve 10 problems regarding area, scale factors, and circumference. Students, in 3 of the problems, are given the circumference and asked to work backwards to find missing information.
3 Items in Collection
Lesson Planet

Know and Use the Formulas for Area and Circumference of a Circle (7.G.B.4)

For Teachers 6th - 8th Standards
Practice with the formulas for circumference and area of a circle. Videos each work with a specific area and the last video challenges them to work backwards when given the area.
Lesson Planet

Evaluating Formulas: Area and Circumference of Circles

For Students 6th - 12th
Use this area and circumference of circles worksheet to have learners solve 13 short answer problems. They find the area and circumference of circles given a radius or diameter measurement.

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