Properties of Logarithm

Open Ended

​Bell Work: Add/subtract/multiply or divide the following fractions.

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​1. (9/4) + (4/5)=

2. ​(3/2) - (2/3) =

3. (4/5) * (5/4) =

4. (2/5) / (2/3) = ​

Properties of Logarithm

by JadeAnthony Dosdos

​Lesson Objectives:

​At the end of the lesson, student should be able to:

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​- Use properties of logarithms to evaluate logarithms.

​- Use the properties of logarithms to expand or condense logarithmic expressions.

​Warm-up:

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Rewrite the equation in logarithmic form:  $$4^{-1}=\frac{1}{4}$$  

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Rewrite the equation in logarithmic form:  $$256^{\frac{1}{8}}=2$$  

​Core concepts:

​Example:

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Evaluate the logarithm: $$\log_6\ \frac{5}{8}$$  

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Evaluate the logarithm: $$\log_640$$  

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Evaluate the logarithm:  $$\log_664$$  

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Evaluate the logarithm: $$\log_6125$$