On this page you'll find a sampling of the many resources on Media4Math that focus on the topic of Exponential and Logarithmic Functions. Media4Math is a digital library of over 15,000 resources on all key topics in K12 math.Subscribers can download these resources. Register and Subscribe today. 
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Algebra Application: Why Are Receipts So Long? 
In this Algebra Application, students gather data to study the lengths of paper receipts. They also learn to estimate the total number of receipts produced worldwide using industry data. From this they can study the environmental impact of having to produce so many paper receipts. The math topics covered include: 

Algebra Application: Why Are Wildfires So Dangerous? 
In this Algebra Application, students learn about wildfires and the measurement of air quality. The math topics covered include: 

VIDEO: Algebra Applications: Exponential Functions 
In this episode of Algebra Applications, students explore earthquakes using exponential models. In particular, students analyze the earthquake that struck the Sichuan Province in China in 2008, months before the Beijing Olympics. 

VIDEO: Algebra Applications: Exponential Functions, Segment 1: Introduction 
In this introductory segment students learn about the great earthquake of 2008 that hit the Sichuan province of China. In the process they learn about how exponential functions provide a good model for describing earthquake intensity. 

VIDEO: Algebra Applications: Exponential Functions, Segment 2: What Is an Earthquake? 
The basic definition of an exponential function is shown in the intensity function for an earthquake. Students analyze data and perform an exponential regression based on data from the Sichuan earthquake. 

VIDEO: Algebra Applications: Exponential Functions, Segment 3: What Is the Difference between Earthquake Intensity and Magnitude? 
An exponential model describes the intensity of an earthquake, while a logarithmic model describes the magnitude of an earthquake. In the process students learn about the inverse of an exponential function. 

VIDEO: Algebra Applications: Exponential Functions, Segment 4: How Is Earthquake Magnitude Measured? 
An earthquake is an example of a seismic wave. A wave can be modeled with a trigonometric function. Using the TINspire, students link the amplitude to an exponential function to analyze the dramatic increase in intensity resulting from minor changes to magnitude. 

VIDEO: Algebra Applications: Logarithmic Functions 
In this episode of Algebra Applications, students explore various scenarios that can be explained through the use of logarithmic functions. Such disparate phenomena as hearing loss and tsunamis can be explained through logarithmic models. 

VIDEO: Algebra Applications: Logarithmic Functions, Segment 1: What Are Logarithms? 
The mathematical definition of a logarithm is the inverse of an exponential function, but why do we need to use logarithms? This segment explains the nature of some data sets, where incremental changes in the domain result in explosive changes in the range. As a result, logarithms allow for the a way to present and analyze what would otherwise be unwieldy data. 

VIDEO: Algebra Applications: Logarithmic Functions, Segment 2: Hearing Loss 
We live in a noisy world. In fact, prolonged exposure to noise can cause hearing loss. Students analyze the noise level at a rock concert and determine the ideal distance where the noise level is out of the harmful range. Using the TINspire’s Geometry tools, student create a mathematical simulation of the decibel level as a function of distance. 

VIDEO: Algebra Applications: Logarithmic Functions, Segment 3: Tsunamis 
In 1998 a devastating tsunami was triggered by a 7.0 magnitude earthquake off the coast of New Guinea. The amount of energy from this earthquake was equivalent to a thermonuclear explosion. Students analyze the energy outputs for different magnitude earthquakes. 

VIDEO: Algebra Nspirations: Exponents and Exponential Functions 
Almost everyone has an intuitive understanding that exponential growth means rapid growth. Written and hosted by internationally acclaimed math educator Dr. 

VIDEO: Algebra Nspirations: Exponents and Exponential Functions, Segment 1 
In this Investigation we explore the properties of exponents and exponential graphs. This video is Segment 1 of a 4 segment series related to Exponents and Exponential Functions. Segments 1 and 2 are grouped together. To access Exponents and Exponential Functions, Segment 2, click the following link: 

VIDEO: Algebra Nspirations: Exponents and Exponential Functions, Segment 2 
In this Math Lab students compare the graphs of quadratics and exponential graph of base 2. This video is Segment 1 of a 4 segment series related to Exponents and Exponential Functions. Segments 1 and 2 are grouped together. To access Exponents and Exponential Functions, Segment 1, click the following link: 

VIDEO: Algebra Nspirations: Exponents and Exponential Functions, Segment 3 
In this Investigation we look at exponential growth and decay models. This video is Segment 3 of a 4 segment series related to Exponents and Exponential Functions. Segments 3 and 4 are grouped together. To access Exponents and Exponential Functions, Segment 4, click the following link: 

VIDEO: Algebra Nspirations: Exponents and Exponential Functions, Segment 4 
In this Math Lab we look at cooling curves. This video is Segment 4 of a 4 segment series related to Exponents and Exponential Functions. Segments 3 and 4 are grouped together. To access Exponents and Exponential Functions, Segment 3, click the following link: 

VIDEO: Algebra Nspirations: Logarithms and Logarithmic Functions 
This video begins with the historical invention of logarithms that forever changed the world of computation—until the advent of calculators more than 300 years later. Written and hosted by internationally acclaimed math educator Dr. 

VIDEO: Algebra Nspirations: Logarithms and Logarithmic Functions, Segment 1 
In this Investigation we look at properties of logarithms. This video is Segment 1 of a 4 segment series related to Algebra Nspirations: Logarithms and Logarithmic Functions. Segments 1 and 2 are grouped together. To access Algebra Nspirations: Logarithms and Logarithmic Functions, Segment 2, click the following link: 

VIDEO: Algebra Nspirations: Logarithms and Logarithmic Functions, Segment 2 
In this Math Lab we look at patterns among different logarithm calculations. This video is Segment 2 of a 4 segment series related to Algebra Nspirations: Logarithms and Logarithmic Functions. Segments 1 and 2 are grouped together. To access Algebra Nspirations: Logarithms and Logarithmic Functions, Segment 1, click the following link: 

VIDEO: Algebra Nspirations: Logarithms and Logarithmic Functions, Segment 3 
In this Investigation we look at logarithmic functions and graphs. This video is Segment 3 of a 4 segment series related to Algebra Nspirations: Logarithms and Logarithmic Functions. Segments 3 and 4 are grouped together. To access Algebra Nspirations: Logarithms and Logarithmic Functions, Segment 4, click the following link: 

VIDEO: Algebra Nspirations: Logarithms and Logarithmic Functions, Segment 4 
In this Math Lab we look at an application of logarithms involving astronomy. This video is Segment 4 of a 4 segment series related to Algebra Nspirations: Logarithms and Logarithmic Functions. Segments 3 and 4 are grouped together. To access Algebra Nspirations: Logarithms and Logarithmic Functions, Segment 3, click the following link: 

Closed Captioned Video: Algebra Applications: Exponential Functions 
In this episode of Algebra Applications, students explore earthquakes using exponential models. In particular, students analyze the earthquake that struck the Sichuan Province in China in 2008, months before the Beijing Olympics. 

Closed Captioned Video: Algebra Applications: Exponential Functions, Segment 1: Introduction 
In this introductory segment students learn about the great earthquake of 2008 that hit the Sichuan province of China. In the process they learn about how exponential functions provide a good model for describing earthquake intensity. 

Closed Captioned Video: Algebra Applications: Exponential Functions, Segment 2: What Is an Earthquake? 
The basic definition of an exponential function is shown in the intensity function for an earthquake. Students analyze data and perform an exponential regression based on data from the Sichuan earthquake. 

Closed Captioned Video: Algebra Applications: Exponential Functions, Segment 3: What Is the Difference between Earthquake Intensity and Magnitude? 
An exponential model describes the intensity of an earthquake, while a logarithmic model describes the magnitude of an earthquake. In the process students learn about the inverse of an exponential function. 