Unit Plan
Mathematics Vision Project

Circles: A Geometric Perspective

For Teachers 10th - 12th Standards
Circles are the foundation of many geometric concepts and extensions - a point that is thoroughly driven home in this extensive unit. Fundamental properties of circles are investigated (including sector area, angle measure, and...
Unit Plan
Mathematics Vision Project

Module 6: Trigonometric Functions

For Students 9th - 12th Standards
Create trigonometric functions from circles. The first lesson of the module begins by finding coordinates along a circular path created by a Ferris Wheel. As the lessons progress, pupils graph trigonometric functions and relate them to...
Unit Plan
Mathematics Vision Project

Module 5: Modeling with Geometry

For Students 9th - 12th Standards
Solids come in many shapes and sizes. Using geometry, scholars create two-dimensional cross-sections of various three-dimensional objects. They develop the lesson further by finding the volume of solids. The module then shifts...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Radius or Diameter of a Circle Given Area

For Students 6th - 7th
[Free Registration/Login may be required to access all resource tools.] Find the radius or diameter of a circle given its area.
Unit Plan
Khan Academy

Khan Academy: Radius and Diameter

For Students 6th - 8th
Practice finding the radius and diameter of a circle using both vocabulary and visuals. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Radius or Diameter of a Circle Given Area

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Find the radius or diameter of a circle given the area of the circle
Unit Plan
Cuemath

Cuemath: Diameter

For Students 6th - 8th
Understand the concept of diameter by learning the definition and symbols. Check-out the solved examples for better understanding and try your hand at solving a few interactive questions at the end of the page.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Diameter or Radius of a Circle Given Circumference

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson, students find the radius, diameter, and circumference of different circles. Students examine guided notes, review guided practice, watch...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Diameter or Radius of a Circle Given Circumference

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the diameter or radius of a circle given the circumference. Students examine guided notes, review guided practice, watch instructional...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Diameter or Radius of a Circle Given Circumference

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the diameter or radius of a circle given its circumference. Students examine guided notes, review guided practice, watch instructional...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Circle

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a circle given its radius or diameter. Students examine guided notes, review guided practice, watch instructional videos and...
Unit Plan
Khan Academy

Khan Academy: Circumference of a Circle

For Students 6th - 8th
Find the circumference of a circle when given either the radius or diameter.Find the radius or diameter of a circle when given the circumference.Students receive immediate feedback and have the opportunity to try questions repeatedly,...
Unit Plan
Cuemath

Cuemath: Circles

For Students 3rd - 8th Standards
Explore everything about circles. Learn various parts of a circle like a diameter, radius, circumference, circles chord, tangent circles, major arc, segment, sector, and discover other interesting aspects of it. Try your hand at solving...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Pi

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Identify pi as the ratio of a circle's diameter to a circle's circumference.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Circle

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a circle given the radius or the diameter. Students examine guided notes, review guided practice, watch instructional videos...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area of a Circle

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the area of a circle given the radius or the diameter. Students examine guided notes, review guided practice, watch instructional videos...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Circle Circumference

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the circumference of a circle given the radius or the diameter. Students examine guided notes, review guided practice, watch...
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Circle Circumference

For Students 6th - 9th
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the circumference of a circle given its diameter or radius. Students examine guided notes, review guided practice, watch instructional...
Unit Plan
Khan Academy

Khan Academy: Praxis Core Math: Circles Lesson

For Students 9th - 10th
A basic review of circles and how to calculate the circumference, radius, diameter, and area. Includes practice questions.
Unit Plan
E-learning for Kids

E Learning for Kids: Math: World of Fish: Geometry

For Students 5th - 6th
Students will play an interactive game to identify the circumference, radius, center, and diameter of circles.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Chords in Circles

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson, students apply chord theorems. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
Unit Plan
BBC

Bbc: Circumference and Area of a Circle

For Students 5th - 8th Standards
This is where you can pick up some valuable pointers on how to find the circumference and area of a circle. There is also information on how to find the perimeter and area of a semicircle. When you finish working your way through the...
Unit Plan
Wolfram Research

Wolfram Math World: Sphere

For Students 9th - 10th
This webpage thoroughly discusses the math of spheres. Includes the equation for a sphere in Cartesian and spherical coordinates as well as parametrically. Surface Area, volume, and curvature are addressed at this extensive site.
Unit Plan
Khan Academy

Khan Academy: Area of a Circle

For Students 6th - 8th Standards
Find the area of a circle given its radius, diameter, or circumference. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

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