Instructional Video

Introduction to Functions

Curated and Reviewed by Lesson Planet
This Introduction to Functions instructional video also includes:

What makes functions so special? Viewers discover the definition of relations and functions, as well as independent and dependent variables, in a mathematical video. Five problem videos cover examples identifying functions from relations in different forms.

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Additional Tags
Instructional Ideas
  • Use the video with learners struggling with identifying functions
Classroom Considerations
  • The first problem focuses on mappings, the second problems focuses on ordered pairs, and the third problem focuses on graphs, so use the appropriate video for reteaching
  • The fifth problem is slightly different from the other videos as it introduces the concept of combining functions through operations, and uses function notation
Pros
  • Clear, simple explanations
Cons
  • In the concept video, speaker gives an example of a verbal function but inadvertently changes the amount of gas partway through
  • Contains some spelling errors