An alternative notation for expressing an exponent.
A logarithm is the exponent you need to raise a base number to in order to get another number. In simpler terms, it’s a way of asking: “To what power must we raise this base to get that number?”
For example: If 10² = 100, then log₁₀(100) = 2
This means that 10 raised to the power of 2 gives us 100.
The word “logarithm” might seem complex at first, but it’s just another way to look at exponents and powers. Logarithms are very useful in solving problems where numbers grow or shrink very quickly, like in science, sound levels, and earthquakes.
When Do Students Learn About Logarithms?
Students encounter logarithms when they advance to algebra and explore exponential and inverse functions.
Grades 9–12 – Introduction to Logarithms
Students learn what logarithms are, how to calculate them, and how they relate to exponents. They begin solving logarithmic equations and using properties of logarithms.
