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Activity
University of North Carolina

University of North Carolina Wilmington: Logarithmic Functions

For Students 9th - 10th
Defines logarithmic functions, offers interactive graphs of exponential equations, and explains natural logarithms.
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Handout
Paul Dawkins

Paul's Online Notes: Algebra: Logarithm Functions

For Students 9th - 10th Standards
Detailed math tutorial introduces logarithm functions giving the basic properties and graphs. Also, discusses how to evaluate some basic logarithms including the use of the change of base formula, the common logarithm, log(x), and the...
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Activity
Interactive Mathematics

Interactive Mathematics: Exponential and Logarithmic Functions

For Students 9th - 10th Standards
This is a comprehensive tutorial on Exponential and Logarithmic Functions
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Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Logarithmic Functions

For Students 9th - 10th Standards
This clear tutorial provides the definition of a logarithmic function as well as instruction on how to perform important tasks with them. Find step-by-step solutions to example problems and practice exercises for you to complete and check.
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Unit Plan
CK-12 Foundation

Ck 12: Analysis of Logarithmic Graphs: Graphs of Logarithmic Functions

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] Graphing logarithmic functions using transformations. Identifying log functions as the inverses of exponential functions. Students examine guided notes, review...
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Activity
Anne Arundel Community College

Anne Arundel Community College: Math 131: Logarithmic Function: Graphs

For Students 9th - 10th Standards
The tutorial examines basic logarithmic graphs and their properties. Students learn about logarithmic function graphs through examples with detailed solutions.
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Activity
Windstream

Ojk's Precalculus Study Page: Logarithmic Functions

For Students 9th - 10th Standards
A wonderful study tutorial explaining logarithmic functions. Learn how to solve simple logarithmic functions. Includes many graphs and examples.
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Unknown Type
Khan Academy

Khan Academy: Graphs of Logarithmic Functions

For Students 9th - 10th Standards
Graph logarithmic functions and find the appropriate graph given the function.
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Graphic
University of Guelph

University of Guelph: Graphing With Logarithmic Paper

For Students 9th - 10th Standards
Good tutorial explaining how to produce a graph on logarithmic paper.
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Activity
University of Vienna (Austria)

Math Online: Functions

For Students 9th - 10th Standards
This interactive site uses applets to show sample graphs of each simple power function, a function plotter, graph puzzles, and more. Great site.
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Handout
Math Notes and Math Tests

Pre Calculus Notes: Logarithmic (Log) Functions and Their Graphs [Pdf]

For Students 9th - 10th Standards
The resource from a professor at San Diego Mesa College investigates logarithmic functions and their graphs. Topics examined are common logs, basic log properties, and domains of logarithmic functions. Class notes and examples are included.
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Activity
Richland Community College

Richmond Community College: Logarithmic Functions

For Students 9th - 10th
This site which is provided for by the Richmond Community College gives information examining logarithmic functions and their graphs.
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Activity
Richland Community College

Richland Community College: Logarithmic Functions

For Students 9th - 10th Standards
This site from Richland Community College includes basic definition, properties, and graph of the logarithmic function.
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eBook
CK-12 Foundation

Ck 12: Algebra Ii: 3.11 Modeling With Exponential Decay and Log Functions

For Students 9th - 10th Standards
This lesson continues exploring the process for modeling real world scenarios by writing and solving exponential and logarithmic functions. It also covers how to create and interpret graphs of such functions.
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Activity
University of Vienna (Austria)

The Graphs of Sin, Cos, and Tan Maths Online

For Students 9th - 10th
This applet allows the user to create the graphs of sin, cos, and tan by moving a scroll bar. The user can watch the unit circle and the graph simultaneously to see how the two are related. The user may also choose to see the angle...
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Activity
University of Vienna (Austria)

Maths Online: Recognize Functions 3

For Students 9th - 10th Standards
An excellent place to test your ability to recognize the graphs of sine and cosine and their various associated forms. A Java applet is also included to plot your own function.
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Activity
Other

Numbers, Constants, and Computation: The Logarithm Constant : Log(2)

For Students 9th - 10th Standards
This site explains The logarithm constant : log(2). It is a very comprehensive site.
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Activity
Math Medics

S.o.s. Math: Graphs of Exponential & Logarithmic Function

For Students 9th - 10th Standards
This lesson gives brief description of dependent and independent variables and how they relate to the exponential and logarithmic functions.
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Activity
Texas Instruments

Texas Instruments: Exploring Families of Functions

For Teachers 9th - 10th Standards
This activity provides students an opportunity to discover the similarities involved in shifting the parent functions for absolute value, quadratic, cubic, radical, exponential, and logarithmic functions. Students will also be given the...
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Activity
Mathematics Archives

Math Archives: Visual Calculus: Exponential Functions

For Students 9th - 10th Standards
Good site about exponential functions. The site has information on significance, notation, rules, graphs, etc.
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Graphic
William Mueller

William Mueller: Families of Functions

For Students 9th - 10th Standards
Meet the Function Family! Each member of the family has examples of their graphs and descriptions of the types of real-world situation that produce those graphs.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: F Bf Exponentials and Logarithms Ii

For Teachers 9th - 10th Standards
The purpose of this task is to help students see that the definition of the logarithm as an exponent results in an inverse relationship between the exponential and logarithm functions with the same base. This prepares them to think about...
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Handout
Wolfram Research

Wolfram Math World: Natural Logarithm

For Students 9th - 10th Standards
This site gives graphs of logarithmic functions and pays particular attention to base 10 and base e (natural logarithm). The site explains how to change bases, the importance of the natural logarithm in calculus, incorporating the...
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Activity
Interactive Mathematics

Interactive Mathematics: Graphs of Exponentials & Logarithms

For Students 9th - 10th Standards
Interactive graphs of base 10 exponential and logarithmic functions are demonstrated and applied to real-world problems.