Curated OER
Exponential Decay Functions
In this exponential functions worksheet, students solve and complete 13 various types of problems. First, they state whether the table represents an exponential function or not and why. Then, students graph each function and identify its...
Curated OER
Chapter 8 Review: Exponential Growth
In this exponential growth instructional activity, students find the exponential growth and exponential decay of given situations. They simplify problems with exponents and evaluate logarithms. This four-page instructional activity...
Curated OER
Get a Half Life!
Eighth graders use M&M's to experiment with data. They use a graphing calculator to determine the best equation for their data; linear, quadratic or exponential. They analyze the data to find the half-life of their M&M's.
University of South Florida
Fcat: Get a Half Life!: Teacher Notes
Students use M&M's and a graphing calculator to collect and graph data. This activity helps them to understand exponential functions and the concept of half-life.
University of Guelph
University of Guelph: Physics Tutorials: Exponential Growth and Decay
Good site explaining exponential growth and decay, with questions for students to test themselves.
Other
University of Rochester: Exponential Decay
A detailed and comprehensive site explaining exponential decay. Includes formulas and many examples.
Math Is Fun
Math Is Fun: Compound Interest
Explains, with examples, what compound interest is and how to calculate it using a formula. Also shows how to work backwards to calculate the present value of an investment, how compound interest is calculated for different compounding...
TED Talks
Ted: Ted Ed: Radioactivity: Expect the Unexpected
Video explaining the process, risks, and benefits of radioactivity. [4:16] Followed by a short quiz and a list of additional resources to explore.
Oregon State University
Calculus Quest: Exponential Functions
This CalculusQuest site provides a basic introduction to exponential functions, covering the laws of exponents and exponential growth and decay. At the bottom of the page are links to exponential equations, exercises, and the...
Oregon State University
Calculus Quest: Questions on Exponential Functions
A set of exercises, complete with solutions, covering the basics of exponential functions, from the laws of exponents to exponential growth and decay.
Windstream
Ojk's Precalculus Study Page: Exponential Functions
An introduction to exponential functions, concentrating on models of exponential growth and decay.
Richland Community College
Richland Community College: Exponential Functions and Their Graphs
The site explains exponential functions and characteristics of their graphs.
Texas Instruments
Texas Instruments: Numb3 Rs: A Matter of Half Life and Death
Based off of the hit television show NUMB3RS, this lesson introduces students to the topic of exponential decay and half-life. The lesson is built around Cesium-137, a radioactive isotope, and it's declining radioactivity over the course...
Texas Instruments
Texas Instruments: Exponential Functions: Growth and Decay
Students can use exponential functions to study growth and decay. Students will solve word problems ranging from population to interest rates.
Texas Instruments
Texas Instruments: M&m's and Decay Graphs
Observe exponential decay with the classic M&M lab, here written up and ready to go. At the end, the author intends for students to send equations and data to the teacher via TI-Navigator, but this step can done on paper if the...
Texas Instruments
Texas Instruments: Exponential Growth and Decay : M&m's Activity
In this activity, students use the TI InterActive! to model exponential growth and decay.
Texas Instruments
Texas Instruments: Discovering Algebra: Decreasing Exponential Model & Half Life
Students will explore exponential equations that model real-world decay data.
Texas Instruments
Texas Instruments: M&m's and Exponential Graphs
Students can use M&M's to model a decay equation - exponential equations.
Texas Instruments
Texas Instruments: Modeling Exponential Decay With a Look at Asymptotes
Students use sample data to approximate models with the Transformation Graphing Application. They are introduced to the idea of discrete data sets being used with continuous function models. They also identify non-zero asymptote form of...
Texas Instruments
Texas Instruments: Growth and Decay Formulas
In this question set, students use exponential growth and decay functions to solve problems about compound interest, population growth, investments, and half-life. Solutions and explanations are provided for these problems.
Texas Instruments
Texas Instruments: Pearson Prentice Hall Algebra 2: Exploring Exponential Models
Students will model exponential growth and model exponential decay. Students will make a visual choice of an appropriate model and then use the Transformation Graphing App to confirm their choice.
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Exponential Growth and Decay
Complete practice exercises after learning how to solve exponential growth and decay problems.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Estudio Del Crecimiento De Una Funcion
Learn with these interactive exercises the concepts of growth and decay of a function and analyze the concepts with elementary functions.
Purple Math
Purplemath: Graphing Exponential Functions: Intro
An in-depth lesson which teaches you how to graph exponential equations. Examples are worked through step by step and explained in detail for different exponential equations.