Laws of Logarithms | Year 10 Mathematics | MaffsGuru.com
Laws of Logarithms | Year 10 Mathematics | MaffsGuru.com
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This video continues the short season on Logarithms for the Year 10 course here in Australia and around the world. It looks at the rules we can use to add and subtract logarithms. There is also a rule which helps us deal with powers! There are some useful properties of logarithms and a picture of what a logarithmic graph looks like. There are lots of worked examples and all of this is explained in an easy to understand way. I have been known to even use some humour to make these videos engaging!
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00:10 Welcome
00:29 Learning objectives
01:38 Recap of past learning
02:17 Logarithm Law 1
05:34 Logarithm Law 2
06:17 Logarithm Law 3
06:58 Other important properties of logarithms
08:13 What does a logarithm graph look like?
09:03 Example 1: Simplifying logarithmic expressions
11:00 Example 2: Evaluating logarithms
13:20 Example 3: More complex logarithm questions
14:40 Lesson objectives: Revisited
15:03 Final words and summary
This maths video has been created for courses which are delivered in Australia but, as Maths is a constant, it is equally helpful for students in the USA, UK and other countries who are looking for good maths videos for both high school and middle school.