Logarithms – Changing the Base

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Presentation transcript:

Logarithms – Changing the Base All pupils can answer basic logarithmic questions All pupils can change the base of a logarithm for non-calculator situations

Ext. Prove each statement in another way Starter: True or False? Ext. Prove each statement in another way

Ext. Prove each statement in yet another way Starter: Quick Questions Ext. Prove each statement in yet another way

Logarithms – Changing the Base All pupils can answer basic logarithmic questions All pupils can change the base of a logarithm for non-calculator situations

Main: base of a logarithm

Main: base of a logarithm

Main: base of a logarithm

Main: base of a logarithm Question Logarithmic form Same base form

Logarithms – Changing the Base All pupils can answer basic logarithmic questions All pupils can change the base of a logarithm for non-calculator situations

Look at the examples on page 252 and at the top of 253 Main 2: Look at the examples on page 252 and at the top of 253

Main 2: Exercise 5F

Exponentials and Logarithms All pupils can convert between logarithmic and exponential forms Most pupils can derive the logarithmic laws All pupils can use logarithms to solve problems

Wipeboards

Exponentials and Logarithms All pupils can convert between logarithmic and exponential forms Most pupils can derive the logarithmic laws All pupils can use logarithms to solve problems