Instructional Video

Locus and Definition of a Circle and Sphere

Curated and Reviewed by Lesson Planet

Vocabulary is key to understanding geometry, so start your learners out on the right foot! Scholars learn how to read and interpret geometric statements with an informative video, which uses the idea of locus to create the definition of a circle and sphere. The additional videos use the same strategy to develop the meaning of a perpendicular bisector and an angle bisector.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Pause the video after the instructor introduces each task; challenge classes to complete the task before playing the answer
  • Use the video when a substitute is needed to aid instruction
Classroom Considerations
  • Playing the video requires Internet and YouTube access
Pros
  • There is a strong focus on vocabulary and notation
Cons
  • Missing application and real-life connections
Common Core