Sophia Learning
Sophia: Slant Height of a Pyramid
This video lesson demonstrates how to use the Pythagorean Theorem to find the slant height of pyramid.
Sophia Learning
Sophia: Spheres: Volume and Surface Area
This video tutorial demonstrates how to calculate the volume and surface area of a sphere. The lesson includes four videos with detailed examples using the formulas for volume and surface area. [Video tutorial lengths total 17:16]
Sophia Learning
Sophia: Surface Area of a Hemisphere Tutorial
This video lesson shows examples of how to solve for the surface area of a hemisphere as well as checks understanding with an assessment. [4:05]
Sophia Learning
Sophia: Terms Relating to Circles
This lesson will define the terms center, diameter, radius, chord, circumference, and pi. Students can watch a video tutorial and then take an online quiz.
Sophia Learning
Sophia: Volume of a Cone
This video resource demonstrates how to find the volume of a cone. It includes two detailed examples with pictures. [4:00]
Sophia Learning
Sophia: Sector Area of a Circle
This video lesson demonstrates how to find the radius and area of a circle using the area of a sector and a central angle measurement. Students can check their understanding with an assessment.
Sophia Learning
Sophia: Circle Vocab 1
Parts of a circle are defined in this lesson. Take a quiz to assess learning.
Virtual Nerd
Virtual Nerd: What Is Pi?
Take a look at this tutorial to learn about the irrational number pi. [4:41]
Virtual Nerd
Virtual Nerd: What Is a Circle?
Take a look at this tutorial to learn about circles and see the different parts of a circle. [3:54]
Math Antics
Math Antics: Circles: What Is Pi?
Gain a basic understanding of what P is by watching this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [7:58]
Khan Academy
Khan Academy: Circumference and Area of Circles
Understanding the relationship between the radius, diameter, and circumference of a circle.
Khan Academy
Khan Academy: Introduction to Euclidean Geometry: Language of the Circle
In this video student learn formal definition of a circle including tangent and secant lines, diameters, radii, major and minor arcs.
Art of Problem Solving
Art of Problem Solving: Introduction to Circles
Video tutorial uses examples to introduce circles. [6:39]
Loyola University Chicago
Math Flix: Circle Vocabulary
This QuickTime movie provides an opportunity to learn about the vocabulary of a circle. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Loyola University Chicago
Math Flix: Illustrating Circle Vocabulary on the Computer
This video explains how to use drawing tools on a computer to draw circles and their parts. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept. [5:59]
Khan Academy
Khan Academy: Geometry Word Problem: Earth & Moon Radii
Similarity and the Golden ratio join forces again, this time to save the Earth! (Or maybe just finding its radius.)
Sophia Learning
Sophia: Converting Between Diameter and Radius
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure.
Sophia Learning
Sophia: Converting Between Diameter and Radius
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure.
Sophia Learning
Sophia: Converting Between Diameter and Radius: Lesson 4
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure. It is 4 of 10 in the series titled "Converting Between Diameter and Radius." [2:01]
Sophia Learning
Sophia: Converting Between Diameter and Radius: Lesson 7
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure. It is 7 of 10 in the series titled "Converting Between Diameter and Radius." [1:56]
Sophia Learning
Sophia: Converting Between Diameter and Radius: Lesson 8
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure. It is 8 of 10 in the series titled "Converting Between Diameter and Radius." [2:33]
Sophia Learning
Sophia: Volume and Cubed Roots
In this tutorial you will learn how to find the volume of an object as well as how to use the volume equation to find the radius of a sphere using cubed roots. Student watch a video tutorial and then take an online quiz.
Shmoop University
Shmoop: Attributes of Circles
This video explains circumference, radius and diameter in an appealing way for students to understand.