CK-12 Foundation
Ck 12: Arithmetic: Prices Involving Sales Tax
[Free Registration/Login may be required to access all resource tools.] Have you ever had to calculate a tip in a restaurant? Figure out the amount with taxes and estimate appropriate tips.
Math Is Fun
Math Is Fun: Pi
Explains what Pi is and how it is calculated. Gives suggestions for how to calculate it yourself and a tip for remembering it to nine decimal places. Includes a set of practice questions.
Goodwill
Gcf Global: Percentages in Real Life
Learn how to calculate percentages in real-life situations, from sales tax to discounts to tips.
Oswego City School District
Regents Exam Prep Center: Irrational Approximations
Providing one lesson, one practice exercise, and two teacher resources, the information at this website is geared toward students who already understand rational and irrational numbers. The lesson has explanations of what happens when a...
Other
Help for Growing and Starting Your Small Business
"From 200+ ways to be your own boss and how to calculate your start-up costs to sample business plans and more all from Business Know-How."
Oswego City School District
Regents Exam Prep Center: Absolute Value Equations
The concept of absolute value equations is explained and then explored through several examples. Tips and suggestions are offered as to the common pitfalls to avoid. An all-class activity is also explained for the teacher to engage the...
Khan Academy
Khan Academy: The Sat Math Test: Overview
An overview of what to expect on the SAT Math Test. It measures your ability to apply mathematical concepts and skills to the types of problems you might see in college and in your career. You'll see one 55-minute section with 38...
Internal Revenue Service
Irs: Online Services and Tax Information for Individuals
In a conversational tone, the IRS answers many of the questions an individual would have when filing income tax returns for the first time. Many features are helpful even to experienced taxpayers, e.g., an IRS withholding calculator, a...
Shodor Education Foundation
Shodor Interactivate: Triangle Explorer
This applet allows users to study the nature of triangles and their area. It draws random triangles on a Cartesian coordinate system. The user can determine the area of the triangle using his or her preferred method. After the calculated...
Khan Academy
Khan Academy: Test Day: What to Expect and What to Bring
The SAT Test day: What to expect and what to bring. This is a quick overview of what will happen, what you MUST bring, what you might want to bring, and what you should NOT bring.
Other
Nourish Interactive: Nutrition Education
Games for children teach nutrition concepts, while tools for parents and teachers help promote eating healthy, exercising daily, and setting nutrition and fitness goals. Access to entire collection of resources requires free registration.
Other
Nourish Interactive: Nutrition Education
Games for children teach nutrition concepts, while tools for parents and teachers help promote eating healthy, exercising daily, and setting nutrition and fitness goals. Access to entire collection of resources requires free registration.
Oswego City School District
Regents Exam Prep Center: Tree Diagrams
This tutorial demonstrates how tree diagrams are constructed and shows how to calculate the probability of an event using a tree diagram. There are links to a lesson, practice page, and teacher resource pages with useful tips.
Other
Hippo Campus: Teaching Physics Blog
HippoCampus offers a blog for physics teachers, the purpose of which is to offer ideas for instructing and engaging students in both traditional high school and AP physics. Authored by Tom Anderson, an online instructor for Illinois...
Other
Water Footprint Network
A detailed guide to water footprints on individual, corporate, national, and global levels. Sheds light on the water usage of food products, offers calculators that determine a consumer's own water footprint, shares useful tips for...
Other
Americans Well Informed on Automobile Retailing Economics: Auto Financing 101
Information on financing a car purchase, including tips, a financing calculator, and a quiz.