Flipped Math
Circles and Arc Lengths
Discuss all things round and round. Pupils review finding area and the circumference of circles and use them to solve problems. Next, they learn about central angles and their relationships to measures of arcs. Learners then find out how...
Flipped Math
Regular Polygons
Make area a regular affair. By dividing a regular polygon into triangles, pupils see how the area formula works. Learners watch several examples of finding the area of various regular polygons before practicing how to find the area of...
Corbett Maths
Hexagon Inscribed Within a Circle
Mark off the length of the radius around the circle. Using a compass, the presenter shows how to construct a regular hexagon in a circle. Pupils see how triangles formed in the hexagon are equilateral, allowing for the construction to...
PBS
Pi Day | All About the Holidays
Pi day is both delicious and informative! Play a short video on Pi Day to explain the basics behind both the holiday and the infinite number.
PBS
Formulas for Circle Area and Circumference: Simple as Pie
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...
Mathispower4u
Find the Radius of a Circle Given the Area (Example)
Work backwards if you dare. Scholars view a video to learn how to apply the area formula of a circle to solve problems. They watch an example where the focus is finding the radius of a circle given its area, requiring the use of inverse...
Corbett Maths
Equation of a Circle
How can you make a circle with x's and y's? A video tutorial explains how to write the equation of a circle with a center at the origin. The tutorial also demonstrates how to analyze the equation. Following the lesson, pupils use the...
Corbett Maths
Radius and Tangent – Proof
A tangent line always finds its place at a 90-degree angle to a radius. Many scholars struggle with the proof of the seemingly simple statement. A brief video demonstrates the reasoning behind the proof before pupils practice applying it...
CK-12 Foundation
Calculating Area of a Circle: Lesson
It really is as easy as pi. The segment of a massive geometry playlist points out that the formula for the area of a circle is a relatively simple one. Using the formula, the presenter shows examples of finding the area of circles.
CK-12 Foundation
Circumference: Lesson
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...
CK-12 Foundation
Parts of Circles: Lesson
Start off with the basic parts. The section of a larger playlist covering essential geometry concepts identifies and provides the definitions of the basic parts of a circles. Using drawings, the video illustrates the different parts and...
National Science Foundation
Engineering the Half Pipe—Science of the Winter Olympic Games
There are no tricks here! Young scholars learn about the concept of centripetal acceleration by studying the design of the snowboarding half pipe. A video lesson describes how the half pipe design affects the motion of the boarders.
JFR Science
Periodic Trends: Why Can't I Get Any Francium?
We are family! Why are elements in the same group so similar in many ways? Science scholars explore the relationship between valence electrons and an element's characteristics through a video from the JFR Science playlist. The narrator...
Numberphile
Tau vs Pi Smackdown
Who wins the tau vs pi debate? Two mathematicians share their view of whether tau or pi is better in a video from the Numberphile Pi series. Spoiler alert: Pi wins.
FuseSchool
Equation of a Circle
Explore the equation of a circle by examining its key features. A thorough video lesson compares the equation of a circle to its graph by isolating the center and radius. After presenting the standard form of the equation, learners...
Math Antics
Circles, What Is Pi?
Understanding the basic of circles is as easy as pi. The resource introduces the definition of a circle along with its dimensions, circumference, diameter, and radius. Using graphics, the video shows the approximation of pi and how to...
Mathed Up!
Area and Circumference of Circles
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...
Mathematics Assessment Project
Modeling Motion: Rolling Cups
Connect the size of a rolling cup to the size of circle it makes. Pupils view videos of cups of different sizes rolling in a circle. Using the videos and additional data, they attempt to determine a relationship between cup...
Krista King Math
Equation, Center and Radius, and Intercepts of a Circle
Working with standard equations is essential to mathematics. The instructor shows pupils how to apply the equation of a circle to determine the center, radius, and intercepts of a circle. Learners then view three examples that...
Krista King Math
Intersecting Chords of Circles
Strike a chord with your classes! Use the video to demonstrate the relationship between intersecting chords in a circle. The instructor includes an example that involves a quadratic equation and extraneous solution.
Krista King Math
Circumference of a Circle
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.
Krista King Math
Tangent Lines of Circles
A video instructor explains the meaning of a line tangent to a circle. She then works through an application problem applying the tangent-radius relationship.
Brightstorm
Introduction to Polar Coordinates - Concept
Learning polar coordinates does not require visiting the North Pole, though explaining igloos is much easier using polar coordinates. The lesson begins with a video explaining how to find coordinates on a spherical plane and how to...
Brightstorm
Radian Measure of Angles - Concept
An informative lesson begins with a concept video explaining how radians are figured. Then it offers videos of four progressively difficult guided practice problems.