I work through 3 examples of graphing Logarithms without the use of a calculator. Either understanding the inverse relationship between exponential functions or understanding transformations allows you to ditch the calculator:)
Check out http://www.ProfRobBob.com, there you will find my lessons organized by class/subject and then by topics within each class.
Introduction to Logarithms
https://www.youtube.com/watch?v=GT6AYjgoFco&list=PL4FB17E5C77DCCE69&index=45
Here are my other PreCalculus lessons involving Logarithms
http://www.profrobbob.com/pre-calculus/exponential-functions-and-logarithms Find free review test, useful notes and more at http://www.mathplane.com If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage www.YouTube.com/Profrobbob