Curated OER
The Basics of Biochemistry
Science teachers can introduce basic chemical concepts to biology students.
AAA Math
Aaa Math: Simple Interest
This AAA Math lesson contains an explanation of simple interest and the formula for calculating simple interest. Links to practice problems and learning games.
McGraw Hill
Glencoe: Self Check Quizzes 2 Simple Interest
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of simple interest. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check...
Cuemath
Cuemath: Simple Interest
A comprehensive guide for learning all about simple interest with definitions, simple interest formula, loans, solved examples, and practice questions.
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.
AAA Math
Aaa Math: Consumer Math
From basics such as adding and subtracting money, converting coins, and making change to more advanced topics such as sales tax and simple interest, this interactive tutorial offers help with consumer math issues.
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...
Discovery Education
Discovery Education: Web Math: Math for Everyone
Provides online programs and explanations on everyday math: calculating a tip at a restaurant, determining the sale price of an item, finding the odds of winning a lottery, computing simple and compound interest, and more.
Wolfram Research
Wolfram Math World: Simple Interest
This math site explains and defines the concept of "simple interest" and gives a formula for finding this value in terms of time and rate.
Better Lesson
Better Lesson: Rewriting Formulas
In this lesson, students explore "real-life" resources that make use of literal equations (rewriting known formulas) to help make people's lives easier. Students will use Excel to design formulas that find a specific value like those...
Other
Sierra College: Elementary Algebra Review Sheet and Common Formulas
This review sheet includes important rules, properties, formulas, and equations needed to solve many Algebra problems.
Illustrative Mathematics
Illustrative Mathematics: 7.rp.3 Lincoln's Math Problem
The purpose of this task is for students to solve a multi-step problem involving simple interest. The Aligns with 7.RP.A.3. The task provides both a problem and the solution.
Texas Instruments
Texas Instruments: Math Today for Ti Navigator System College Costs Surge
During this activity, students will explore the expected cost of college and also look at methods of saving money for the future. Comparing simple and compound interest will help students make decisions about their future. Students will...
National Council of Teachers of Mathematics
The Math Forum: Interest Rates
This Dr. Math site asks about simple interest and its effect on the repayment of a loan.
PBS
Pbs: The Lowdown: The Math of Credit Cards
Explore how credit cards work in this video from KQED. In particular, you'll discover the impact and high cost of outstanding balances when borrowing money using credit cards. In the accompanying classroom activity, students discuss the...
Cuemath
Cuemath: Compound Interest
A comprehensive guide for learning all about compound interest with definitions, formulas, solved examples, and practice questions.
Alabama Learning Exchange
Alex: Credit Cards Are "Interest"ing
Young scholars will create a credit card, focusing on appealing terms and slogan. They will use their credit card to go on a shopping spree. The students will receive a "BILL" to discover/discuss the effects/application of simple...
Math Is Fun
Math Is Fun: Solving Word Questions
A tutorial that explains how to solve word problems. It points out key words that signal operations or what is being measured, and wording that is confusing and needs to be simplified. Presents lots of examples, both simple and complex,...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Interest: Definitions
This site gives an explanation of compound interest and explains how to use it.
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...
University of Toronto (Canada)
Answers and Explanations Simple and Compound Interest
If a bank account produces "simple interest", the interest is paid directly and does not become part of the account's interest-bearing balance. That balance remains constant, and it's easy to figure out how much money you earn. This site...
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.
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.