Fun Brain
Fun Brain: Penguin Waiter (Calculating Percents Game for Super Brains)
Given the total price paid for a meal, including the tip (given as a percentage of the meal's cost), players are asked to calculate the original bill.
The Math League
The Math League: Percent and Probability: What Is a Percent?
This site defines a percent, explains it as a fraction and decimal, and shows how to estimate a percentage.
Quia
Quia: Convert Decimals to Percents & Vice Versa Quiz 2
Use this quiz to assess your ability to convert a decimals to a percentages and vice versa. There is a link with information to review this skill if you have difficulty.
PBS
Pbs Teachers: Sports and Math: Batting Averages and More
Set up a spreadsheet using a computer or graphing calculator, and perform calculations using columns. Calculate percentages and solve a system of equations regarding baseball statistics.
ClassFlow
Class Flow: Percentages
[Free Registration/Login Required] In this flipcharts, students use the interactive tools to solve various rational number problems involving percentages (e.g., percent increase/decrease, tax, commission, and discount).
ClassFlow
Class Flow: Percentages
[Free Registration/Login Required] In this flipchart, students use the interactive tools to solve various rational number problems involving percentages. Flipchart contains many sample problems for students to gain plenty of practice.
ClassFlow
Class Flow: Pie Charts Handling Data
[Free Registration/Login Required] Students read and interpret information presented in a pie chart and then determine percentages and ratios numerically and graphically.
ClassFlow
Class Flow: Sales Tax
[Free Registration/Login Required] In this flipchart, students apply ratio, percent, and direct proportion in situations. Students solve problems involving percentages such as percent increase/decrease, tax, commission, and discount.
Wyzant
Wyzant: Percentage Calculator
WyzAnt provides applets that allow the user to input as much of the percentage question that is known, and it will compute the rest.
ClassFlow
Class Flow: Making Change
[Free Registration/Login Required] In this flipchart students will work several word problems and the result will be figuring out the change someone would get after a purchase. The problems involve addition, subtraction, multiplication,...
University of Cambridge
University of Cambridge: Nrich: Dividing a Cake
Sharpen your logic, addition, and fraction skills while working on this challenge. Solution available.
University of Cambridge
University of Cambridge: Nrich: The Magic Number and the Hepta Tree
Use your calculator to help you solve this challenge at this one page website. You can check your solution with only one click of the mouse.
National Council of Teachers of Mathematics
Nctm: Figure This: Tv Ratings (Pdf)
Here's a challenge for the avid TV watcher. Use your data interpretation skills to explore America's TV watching habits in this NCTM Math Challenges for Families activity. See if you can figure out which night of the week has the...
National Council of Teachers of Mathematics
The Math Forum: Against the Odds Lesson Plan
Teachers can find ideas for their probability lesson plans here. For example, there is an interdisciplinary unit dealing with disabilities and probability as well as one using a field trip to Sea World.
National Council of Teachers of Mathematics
The Math Forum: Markdown Savings
This site from the Drexel University contains problems for practicing using percents, using a mock sale as the motif. A link takes you to a model solution.
Other
Rhl School: Math Problem Solving
Utilize this site for lesson plans and worksheets to help your students with math problem-solving.
Fun Brain
Fun Brain: Penguin Waiter (Calculating Percents Game)
Players must calculate the correct tip to leave their penguin waiter based on a percentage of the cost of their meals.
Calculator Soup
Calculator Soup: Percent to Decimal Calculator
Input the percent value that you would like to convert to a decimal. This calculator divides by 100 to convert percents to decimal values.
Calculator Soup
Calculator Soup: Fractions Table
Table shows incremental ordering of fractions with decimal and percentage equivalents.
Calculator Soup
Calculator Soup: Vote Percentage Calculator
Calculate the percentage weight of two or three numbers that make up a total sum of the sample set, as in vote percentage calculations for an election.