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: Exponential Functions
These questions test knowledge of domain and range of exponential functions, properties of exponents, and population growth and compound interest modeled by exponential functions. Questions are true/false and multiple choice; solutions...
![Treasury Direct: Money Math: Secret of Becoming a Millionaire [Pdf] Unit Plan](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Treasury Direct: Money Math: Secret of Becoming a Millionaire [Pdf] Unit Plan")
Other
Treasury Direct: Money Math: Secret of Becoming a Millionaire [Pdf]
This lesson focuses on understanding fractions, decimals and percentages as the math skills, and saving money and compounding interest as the economic skills. [PDF]
Illustrative Mathematics
Illustrative Mathematics: F Le Comparing Exponentials
In this task, students work with exponential functions in a real-world context involving continuously compounded interest. They will study how the base of the exponential function impacts its growth rate and use logarithms to solve...
Federal Reserve Bank
Federal Reserve Bank of Atlanta: Saving and Investing
Explains the Rule of 72 with examples of compound interest and its power to help grow students' money.
PBS
Pbs: How Your Money Grows
Investigate how your money can grow on its own through compound interest.
Calculator Soup
Calculator Soup: Loan Calculator
Use this loan calculator to determine your monthly payment, interest rate, number of months or principal amount on a loan. Find your ideal payment by changing loan amount, interest rate and term and seeing the effect on payment amount.
Illustrative Mathematics
Illustrative Mathematics: A Sse the Bank Account
For this task, students are asked to interpret equations representing a bank account's balance where the interest is compounded monthly versus yearly. Aligns with A-SSE.A.1 and A-SSE.A.1.a.
University of Toronto (Canada)
U. Of Toronto: Does the Number E Have Real Physical Meaning?
This site explains why the number e does have meaning outside of its purely mathematical applications. Gives an example of this using compound interest. Also explains the number e as a limit and its role in calculus.
Other
Critical Thinking Community: Remodeling Lessons for High School
Learn to re-model your lesson plans to include room for critical thought and higher levels of learning. Re-modeled lessons cite specific critical thinking strategies. Wonderful examples include "Vitalizing Vapid Vocabulary," "To Kill A...
Thinkport Education
Maryland Public Television: Sense and Dollars
Engaging, fun tutorials and interactive games related to earning, spending, saving, and budgeting money.
Richland Community College
Richland Community College: Geometric Sequences
Richland Community College provides a lesson on geometric sequences. This site has explanations and examples of their properties.
Council for Economic Education
Econ Ed Link: A Penny Saved
Young scholars will read the comic book, "A Penny Saved" published by the New York Federal Reserve Bank. Students will make the information relevant through projects, graphic organizers, teacher instruction, and problems.
Windstream
Ojk's Precalculus Study Page: The Number E and the Function E^x
An introduction to the natural exponential function, beginning with the limit definition of the irrational number e. Includes several examples and exercises with solutions which deal with the compound interest formula.
Math Notes and Math Tests
Pre Calculus Notes: Exponential Functions and Their Graphs [Pdf]
Students explore exponential functions and their graphs. Exponential decay, the natural exponential function, and compound interest are examined. Proofs, explanations, and examples are included.
Purple Math
Purplemath: Exponential Functions: Introduction
Purplemath offers tables and graphs of various exponential functions for an exploration of how exponential functions behave from the real number domain. Compound interest problems are examined and the natural exponential is discussed...
ClassFlow
Class Flow: Checking and Savings Accounts
[Free Registration/Login Required] Practical Mathematics begins with the basic checking and savings account and how to reconcile a checking account statement. Simple and compound interest are demonstrated in this step by step flipchart.
Math Is Fun
Math Is Fun: E (Euler's Number)
Explains what Euler's Number is, its significance, and the formula used to calculate this irrational number. Gives memory tricks for remembering the value of e to 10 or 15 decimal places. Looks at some interesting properties of e and how...
Khan Academy
Khan: Lsn 8: Interpreting Relationships in Scatterplots/graphs/tables/equations
This lesson focuses on Interpreting and analyzing linear, quadratic, and exponential models and graphs. Students will use best fit lines to interpret contexts, distinguish whether contexts are linear or exponential functions, use the...
Other
Algebra Lab: Applications of Exponential Functions
Explains how exponential functions have applications in real-world scenarios, including a population of a city, the growth of bacteria, drug decay, and compounding interest. Includes four word problems to try, with hints and answers...
Consumer Financial Protection Bureau
Consumer Financial Protection Bureau: Saving for Post Secondary Education
Students use an online compound interest calculator to answer questions and create charts that show the value of saving money over time for future education goals.
CK-12 Foundation
Ck 12: Algebra Ii: 3.9 the Transcendental Number E and Natural Log
This section introduces the transcendental number e which is a special number that is considered a natural base. In addition to exploring how to simplify and solve equations with e, this section also investigates how it can be used to...
Annenberg Foundation
Annenberg Learner: Math in Daily Life: Savings and Credit
A brief article explaining the basics about savings accounts and two kinds of interest: simple and compound. Also learn about managing your credit and credit card debt. Click on "Know the Terms: How to Manage Your Credit Cards" to read...
Calculator Soup
Calculator Soup: Rule of 72 Calculator
Use the Rule of 72 to estimate how long it will take to double an investment at a given interest rate. Divide 72 by the interest rate to see how long it will take to double your money on an investment.
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