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General Maths Units 1 and 2

Logarithms and Log Transforms

Variation

23:38 Lesson length
18 Chapters
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About this lesson
This video is another in the Variation series for the Year 11 General Maths course. Looking at logarithms, I explain what a logarithm is and how it allows is to manage large numbers by making them "smaller". I look at examples of transforming numbers into logs (and back again). I then look at logarithmic (log) transforms to help us linearise data to find a rule linking the orginal data sets. There are a number of worked examples using the CAS with each being explained in an easy to understand way.
Lesson chapters
  1. Welcome
  2. Learning objectives
  3. Recap of past learning
  4. What are logs?
  5. Powers, powers everywhere ...
  6. Logs are just powers of 10
  7. Logs can be negative too!
  8. Example of negative logs
  9. Not all numbers are nice and easy to turn into logs
  10. Quick check
  11. Finding a number from its logarithm
  12. Orders of magnitude
  13. Example: Orders of magnitude
  14. Back to transforming data!
  15. Example: Logarithmic (Log) Transformation
  16. Example 2: Using a CAS for a Log Transform
  17. Example 3: Understanding logs
  18. Learning objectives: Revisited
Legal (VCAA)

VCE Maths exam question content used by permission, ©VCAA. The VCAA is not affiliated with, and does not endorse, this video resource. VCE® is a registered trademark of the VCAA. Past VCE exams and related content can be accessed at www.vcaa.vic.edu.au

Video details
  • Title Logarithms and Log Transforms
  • Section Variation
  • Course General Maths Units 1 and 2

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