Assessment8:43
Mathed Up!

Area and Circumference of Circles

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...
Instructional Video12:15
Krista King Math

Intersecting Secants and Tangents with the Vertex On, Inside, and Outside the Circle

9th - 12th Standards
Prepare classes for the many segment and angle relationships within circles. The video lesson examines the relationship between secants, tangents, angles, and arcs. The instructor works through examples to demonstrate the relationships.
Instructional Video8:36
Krista King Math

Inscribed Angles of Circles

9th - 12th Standards
Relationships in circles build from the many connections made throughout the geometry course. The instructor in the video explains these connections as she builds the concept of inscribed angles. Using examples, the narrator highlights...
Instructional Video6:10
Krista King Math

Arc Length

9th - 12th Standards
Don't let your classes feel like they are going in circles. The video lesson shows pupils how to apply a formula to finding the length of an arc defined along a circle. The instructor uses three different examples to illustrate the...
Instructional Video6:50
Krista King Math

Degree Measure of an Arc

9th - 12th Standards
Circular patterns and movement are commonplace in our world. Young mathematicians begin their study of circles with instruction on finding the degree measure of both major and minor arcs. Examples focus on the arc in relation to the...
Instructional Video2:49
Corbett Maths

Parts of the Circle

6th - 12th Standards
Before you can do anything with circles, you need to know the parts of the circle. Viewers of a short video see how to label relevant information about a circle. The resource covers radius, diameter, circumference, chord, tangent, arc,...
Instructional Video
Study Pug

Study Pug: Surface Area and Volume of Cones

10th - 12th Standards
This video tutorial teaches you how to calculate the surface area and volume of cones. Just like pyramids and cylinders, there are formulas for surface area and volume of cones. Also included are questions on composite solids that...