Logarithms—How Many Digits Do You Need?

Forget your ID number? Your pupils learn to use logarithms to determine the number of digits or characters necessary to create individual ID numbers for all members of a group. 

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CCSS: Designed
Instructional Ideas

  • Invite a computer teacher or science teacher for the lesson; ASCII, Richter Scale, decibel scale, etc., are mentioned in the lesson
Classroom Considerations

  • Parts of the lesson assume you have covered previous lessons in module, such as referring to the logarithmic function as the WhatPower function
  • Internet access is necessary if having learners do research on ASCII (as indicated in the lesson)
  • The ninth installment of a 35-part module.
Pros

  • Lesson notes for the exploratory challenge include questions to help group members reach conclusions
  • Problems incorporate a variety of real-world contexts and situations
Cons

  • None
Common Core