Estimating Errors in Chemistry is a detailed handout that illustrates the importance of calculating the percent error when working in the chemistry lab. There are no actual problems to solve, just notes and examples of calculations. Hand...

Here is an approach to calculating percent with 16 practice problems to solidify the skill. Two examples demonstrate dividing by 100 to get one percent and then multiplying by the percentage in question to get the solution. Learners find...

In this percentage worksheet, students calculate percentages given various types of problems. They calculate percent of compounds in a solution, they calculate mass of compounds given percentages of solutions, and they percentages of...

Adolescents love to shop, especially when an item is discounted. Here, shoppers only have a set amount of money to spend. Will they be able to make a purchase with the discount and tax added in? Percent discounts can be calculated...

Do you have mole problems? If so, call Avogadro at 602-2140. The lesson plan starts with pupils working independently to solve for molar mass of ionic compounds. Then they learn to solve for percent composition and later perform an...

A presentation on how to calculate percentage is here for you. Young mathematicians gain practice in performing the calculations necessary to find a percentage value. Many excellent tips and problems to solve are embedded in the...

Junior chemists discover how to calculate excess reactants, handle limiting reactants, and determine percent yield. After background information is provided, step-by-step examples are solved. You can use this detailed slide show to teach...

Everyone loves a sale, and this worksheet allows learners to calculate which sale is more rewarding. The activity can be adapted for different thinking contexts. The answer key describes different answer choices, some being higher...

One of the most practical ways to teach about percentages is to use the real-life example of "sale" or "discount" pricing. This presentation poses many of these type of problems for young mathematicians who are trying to master the...

For this online worksheet, middle schoolers will solve 10 problems involving percents. Answers can be accessed by clicking hint or check.

In this calculating percents practice worksheet, students use their problem solving skills to calculate the percents of the 10 listed numbers.

In this percent worksheet, learners complete problems such as changing percents to decimals, filling in percentage charts, and more. Students complete 8 problems.

In this percentages practice activity, learners use their math skills to solve 18 problems that require them to calculate the percentages of whole numbers.

In this percentages practice instructional activity, students use their math skills to solve 18 problems that require them to calculate the percentages of whole numbers and decimal numbers.

In this percentages practice worksheet, students use their math skills to solve 18 problems that require them to calculate the percentages of whole numbers.

In this percent of change worksheet, students calculate the change in two whole numbers. They compute the percent of change and indicate if it is an increase or decrease.

In this algebra worksheet, students convert percents to fractions by dividing by 100% and then reducing the fractions as necessary. There are 10 questions.

In this percent activity, learners convert percents to fractions.  This one-page activity contains 10 problems.  Answers are provided.

In this online math worksheet, students practice changing fractions into percents. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching tool!

In this online interactive learning exercise, 5th graders change decimals to percents. They read a short explanation of the process then convert 12 decimal expressions to percent format with immediate online feedback.

In this online interactive math skills instructional activity, students solve 10 multiple choice math problems regarding percents. Students may submit their answers to be scored.

Students complete fraction word problems using TI-Explorer Calculators.

Free clothes? In the middle school assessment task, learners first consider whether four 25 percent reductions will result in a sale price of $0. Mathematicians then determine the sale price and discount percentage of such a sale.

Young mathematicians put their skills to the test in the real world during this four-lesson consumer math unit. Whether they are learning how compound interest can make them millionaires, calculating the cost of remodeling...