# Logarithms

Taught by muchomath
• Currently 4.0/5 Stars.
8958 views | 4 ratings
Part of video series
Meets NCTM Standards:
Lesson Summary:

In this lesson on logarithms, Professor Perez teaches how to solve logarithm problems without a calculator. Using examples such as log base four of sixteen and log base ten of a thousand, he shows how to find the value of the exponent by which a given base must be raised to obtain a given number. He also covers how to handle negative and fractional exponents and explains why the logarithm of zero is undefined.

Lesson Description:

A basic lessons on logarithms and how to find them.

Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.

Questions answered by this video:
• What is a logarithm?
• How do you find the log of a number?
• What is log base 4 of 16?
• What is log base 3 of 9?
• What is the common log?
• What does log 0 equal?
• What does log 1 equal?
• #### Staff Review

• Currently 4.0/5 Stars.
This lesson actually gets into some logarithm calculations (without a calculator) by using the definition of a logarithm. Some really good example problems are shown and the calculations are explained step by step. Some really great examples are chosen, such as log base 3 of 0 and log base 3 or 1, in addition to simpler logs.
• #### mattm10

• Currently 3.0/5 Stars.
I like how the lesson takes you step by step slowly enough to truly understand the information.