Purple Math
Purplemath: Solving Exponential Equations: Solving From the Definition
This Purple Math site has many examples of exponential equations, without using logarithms.
Purple Math
Purplemath: Logarithms: Introduction to "The Relationship"
Purplemath does a wonderful job of explaining logarithms. The lesson begins with a discussion of the relationship between logarithms and exponentials and very simple examples. The lesson gives important information regarding logarithms...
Cool Math
Coolmath: Inverse Tricks
Explanation and examples of inverse functions with exponents and logarithms.
Cool Math
Coolmath: Tricks to Help With Solving Log Equations
Explanation and examples for solving logarithmic equations.
Math Planet
Math Planet: Algebra 2: Logarithm Property
Provides an explanation, examples, and a video lesson all related to the logarithm property.
Cool Math
Coolmath: Exponentials & Logarithms Alien Amoebas
Use the example of alien amoebas to understand exponentials and logarithms.
Cool Math
Coolmath: Exponentials & Logarithms More Ways to Use This Stuff
Learn about some practical, real-world examples of exponentials and logarithms.
Cool Math
Coolmath: Exponentials and Logarithms
Wrap up a bigger pre-calculus tutorial by taking a look at exponentials and logarithms.
Paul Dawkins
Paul's Online Notes: Limits at Infinity, Part Ii: Practice Problems
Provides practice problems that review limits at infinity concentrating on exponentials, logarithms and inverse tangents in this section.
BBC
Bbc: Higher Bitesize Maths: Logarithms
A tutorial on logarithm includes topics such as the laws of logarithms, using a calculator to evaluate, and applying logarithms to real world situations. Examples and a practice test are available.
Illustrative Mathematics
Illustrative Mathematics: F Le Carbon 14 Dating in Practice Ii
This problem introduces Carbon 14 dating which is used by scientists to date certain organic material. This version is based on the ratio of Carbon 14 to Carbon 12, which decreases at a constant exponential rate after an organism dies....
Illustrative Mathematics
Illustrative Mathematics: F Le Snail Invasion
In this task, students investigate the power of exponential growth in this real-world example of an invasive species that was introduced to Florida in 1966, a giant snail. Aligns with F-LE.A.2 and F-LE.A.4.
Illustrative Mathematics
Illustrative Mathematics: F Le Bacteria Populations
This task provides a real-world context for interpreting and solving exponential equations. Students are asked to examine the equations representing the growth of three colonies of the bacterium that causes pneumonia, each colony being...
Illustrative Mathematics
Illustrative Mathematics: F Le Carbon 14 Dating
The task requires the student to use logarithms to solve an exponential equation in the realistic context of carbon dating. Aligns with F-LE.A.4.
Illustrative Mathematics
Illustrative Mathematics: F Le Algae Blooms
This problem examines the growth of algal blooms in Chesapeake Bay. Students build an exponential function modeling algae concentration based on the information provided, and gain an appreciation for the exponential growth exhibited...
University of St. Andrews (UK)
University of St. Andrews: Henry Briggs
This site, which is provided for by the University of St. Andrews, contains information on the life and accomplishments of Henry Briggs.
Purple Math
Purplemath: Logarithmic Word Problems
Logarithmic word problems generally involve evaluating a given logarithmic equation at a given point, and solving for a given variable; they're pretty straightforward. This resource contains worked examples to demonstrate the reasoning...
Khan Academy
Khan Academy: Algebra Ii: Relationship Between Exponentials & Logarithms
Solve various problems that focus on the relationship between a^x=b and log_a(b)=x. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Algebra Ii: Evaluate Logarithms: Change of Base Rule
Evaluate any logarithm in a calculator with the use of the change of base formula. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Algebra Ii: Solve Exponential Equations Using Logarithms
Solve exponential equations that have 2 or other numbers at the base of the exponential term. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Solve Exponential Equations Using Logarithms: Base 10 and Base E
Solve exponential equations that have 10 or e at the base of the exponential term. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Algebra Ii: Evaluate Logarithms
Evaluate basic logarithmic expressions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Algebra Ii: Evaluate Logarithms (Advanced)
Evaluate advanced logarithmic expressions by using the fact that a^x=b is equivalent to log_a(b)=x. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
CK-12 Foundation
Ck 12: Analysis: Logarithmic Functions
[Free Registration/Login may be required to access all resource tools.] Evaluating logarithmic functions by comparing to exponential functions and rewriting to solve.