Texas Instruments
Texas Instruments: Are You Interested in My Dream Car?
Students use the computer and finance application to calculate interest and payments associated in purchasing their "Dream Car".
Alabama Learning Exchange
Alex: What Is Simple and Compound Interest?
Students will learn how simple and compound interest is figured and why it is important to maintain a savings account. Students will calculate compound interest to identify benefits of saving in interest-bearing savings accounts. They...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math; Interest
This Math Forum site gives links students' inquiries involving calculating both simple and compound interest for a variety of situations.
Goodwill
Gcf Global: Calculating Percentages
Learn how to calculate percentages to help you figure out discounts, interest, and more.
Council for Economic Education
Econ Ed Link: Calculating Simple Interest
How do banks calculate the amount of interest paid on a loan? In this lesson, students will view a Livescribe Pencast to learn how to find the dollar amount in interest that is due at maturity. This lesson uses different time periods...
Khan Academy
Khan Academy: Nominal vs. Real Interest Rates
Practice what you've learned about the distinction between the nominal interest rate and the real interest rate, as well as how to calculate both of these key measures.
Khan Academy
Khan Academy: Lesson Summary: Nominal vs. Real Interest Rates
This information is intended for AP Macroeconomics learners or for those taking college macroeconomics. This lesson plan is a summary review of key terms and calculations related to the distinction between the real interest rate and the...
Math Is Fun
Math Is Fun: Compound Interest Formula Derivations
Looks at how the formula for calculating the effect of compound interest is derived and how it is used to create formulas for finding the Future Value, the Present Value, the Interest Rate, and the Number of Periods. Includes lots of...
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.
Discovery Education
Discovery Education: Web Math: Simple Interest Calculator
This site provides a simple interest calculator. Use it to calculate the future value of the principle and get a full explanation of the math behind the calculation.
Science Education Resource Center at Carleton College
Serc: Simple vs. Compound Interest Spreadsheeting the Difference
A lesson plan that includes a PowerPoint learning module for learners. The goal of the lesson plan is to learn the difference between simple and compound interest and to use the functions in Excel to perform the calculations and graph...
Texas Instruments
Texas Instruments: Buying a Car
Students will explore various financial aspects of buying a car including calculating interest rates, payments, and total cost of the car over time.
Calculator Soup
Calculator Soup: Compound Interest Calculator
Calculate compound interest on an investment or savings. Using the compound interest formula, calculate principal plus interest or principal or rate or time.
Calculator Soup
Calculator Soup: Simple Interest Calculator a = P(1 + Rt)
This simple interest calculator calculates an accrued amount that includes principal plus interest.
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.
Other
Credit Karma: Simple Loan Payment Calculator
If you enter the values for a simple loan payment, it will give the monthly payments. You will need to know the principal, interest, and amount of time in years.
Texas Instruments
Texas Instruments: Compound Interest
In this activity, students use the TI graphing calculator to calculate compound interest. They understand that in compound interest computations, the interest from the previous period is added to the current principal and the new total...
Texas Instruments
Texas Instruments: Getting Started With Ti Navigator: Compound Interest
This lesson introduces students' to Activity Center. In this lesson, students will explore the effect of compound interest on the amount of an investment over time. Students will work in small groups (or individually) to calculate...
Calculator Soup
Calculator Soup: Savings Calculator
Calculates the future value of your savings account. With a starting balance and regular deposits, learn how much can you save.
Calculator Soup
Calculator Soup: Investment Calculator
Use the calculator to calculate the future value of an investment or the required variables necessary to meet your target future value. Required values you can calculate are initial investment amount, interest rate, number of years or...
Calculator Soup
Calculator Soup: Investment Account Calculator
Calculate the future value of an investment account that has periodic contributions, withdrawals, and a constant interest rate compounded daily.
eFunda
Apr Calucaltor
This site is an interactive site that will calculate the APR when given the loan amount, the extra cost, the interest rate, and the number of months of the loan.
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Further Problem Solving
You'll learn how to use Polya's four-step process to solve problems involving simple geometry concepts, distance, mixtures, and interest. This tutorial offers several example problems as well as practice exercises for you to complete.
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.