Curated OER
Compounding with 100% Interest Rates
Your young economists will be amazed at the effect of compounding interest more frequently in this collaborative task about making sound financial choices. Learners are walked through the calculations of a couple of examples and then...
Curated OER
Compounding with a 5% Interest Rate
The balance in an account continuously compounding interest is the context of this engaging task. Your young accountants will investigate the ending balance in an account as they compound the interest more and more. Learners write the...
5280 Math
Interesting Times
Gain a little interest in functions with a real-life task. Young scholars analyze home loan data with a geometric sequence and series. They use the models to make predictions about the total loan payments at certain intervals in a...
Curated OER
A Valuable Quarter
Your young bankers model an account balance with an exponential function and solve the equation by extracting a root or taking a logarithm. The task involves the context of annual and compounding interest as well as some interesting...
Curated OER
Interesting Interest Rates
Your young bankers compare earning interest accumulated yearly and monthly to decide which method most increases their balance. Using an exponential function to model the bank balance affords the learners more practice connecting...
Curated OER
Integer Solutions to Inequality
When is the last time you assigned your students only one problem? This seemly simple problem requires learners think like a mathematician and reason about how to solve this compound inequality in one variable. More than just using...
Illustrative Mathematics
Waiting Times
Probability prevails in this assignment as youngsters determine the probability of finding a blue pen in a cereal box when they can come in blue, green, yellow, or red. Learners set up a simulation to determine the outcome of compound...
101 Questions
Fry's Bank
If money was left in an interest-earning account for 1,000 years, how much would it increase? Viewers watch a clip from a show about the future when someone learns about their balance after 1,000 years. Then, they solve for the amount in...
Curated OER
Sitting across from Each Other
What is the probability that two randomly seated people will be across from each other at a square table? Check learners' understanding of theoretical probability and compound events with this short assessment. A great opportunity to...
Howard County Schools
Maria’s Quinceañera
How long will it take to save up for a car? Classmates use linear and exponential models to see how money received during a Quinceanera will grow over time.
Cool Math
Coolmath: Compound Interest 1 Practice
This Algebra Cruncher generates an endless number of practice problems for money and compound interest with solutions! Find the final amount when a given amount of money is invested.
Cool Math
Coolmath: Compound Interest 2
This Algebra Cruncher generates an endless number of practice problems for money and compound interest with solutions! Find how long it will take for a given amount of money to grow to a final amount.
Cool Math
Coolmath: Continuous Compound Interest 2
This Algebra Cruncher generates an endless number of practice problems for money and continuous compound interest with solutions! Find how long it will take for a given amount of money to grow to a final amount.
Cool Math
Coolmath: Continuous Compound Interest 1 Practice
This Algebra Cruncher generates an endless number of practice problems for money and continuous compound interest with solutions. Find the final amount when a given amount of money is invested.
Math Is Fun
Math Is Fun: Interest (An Introduction)
What is interest? What is the difference between simple interest and compound interest? Find the answers to these questions, learn how to calculate interest for a loan, and see how interest can help your money grow. Includes ten practice...
Yale University
Yale New Haven Teachers Institute: Solving Problems "By the Hundreds"
The Yale-New Haven Teachers Institute site contains various math exercises relating to percentage and consumer-related problems. An explanation of sales tax, a related problem and answer are given.
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...
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.
Hopelink
Hopelink: Teaching Percentages
Students can brush up on percentage skills with this lesson and calculate percentages using the "Percent Tricks method." For students to successfully use this method, they must have the ability to multiply and divide whole numbers.
Teaching Treasures Publications
Teaching Treasures: Year Eight Nine Math (Page 3)
This interactive worksheet focuses on math concepts such as algebra, measurement, geometry, problem solving, and number sense. Answers to questions are available immediately and can be printed. Help links are also available to learners...