Do you want to play a little one-to-one? Learn to determine algebraically if a function is one-to-one. Work through two examples using the video as a guide. 

Concepts

horizontal line, one-to-one correspondence

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Additional Tags

math

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Instructional Ideas

• Ask learners to record the information described in a graphic organizer; they should note the definition, an example, and a non-example
• Can be used as a flipped classroom assignment with the video assigned as homework and the practice problems completed in class

Classroom Considerations

• Pupils should understand the concept of a function prior to the lesson
• Requires Internet access to watch the YouTube video in class or at home
• The twenty-first installment in a series of 29 videos

• This video is hosted on YouTube

Pros

• Focuses on algebraic methods but also makes a connection to the graph of the function

Cons

• Includes only a weak explanation of what a one-to-one function is and doesn't explain its importance

Common Core

HSF-BF.B.4.a