In this lesson, students will explore simple interest through the use of studying loans and savings accounts. The students will generate the formula I=P x r x t to calculate simple interest on loans. Students will become familiar with...

Eight questions to practice calculating percent decrease or increase. Both math problems and word problems included.

Students calculate the percent of the total income for sources of income and expenses. Learners then use this information to create a circle graph. The handout is available in PDF format.

You can pick up some valuable percentage pointers on how to work with them. When you finish working your way through the pages, you can take an on-line "Test Bite" and check your understanding.

A selection of teacher resources dealing with percentages. There are worksheets and PowerPoints available to download.

Slides in presentation show how to use mass percent to calculate empirical and molecular formulas.

Test your knowledge of finding the perent of a number.

Use the inverse operation to determine the original amount.

When given a word problem determine the fraction.

[Free Registration/Login may be required to access all resource tools.] Learn how to convert between percentages, decimals, and fractions.

Good site for background and a thorough step by step method to solving problems.

Explains, with examples, what compound interest is and how to calculate it using a formula. Also shows how to work backwards to calculate the present value of an investment, how compound interest is calculated for different compounding...

By the end of this section, you will be able to do the following: Determine the appropriate number of significant figures in both addition and subtraction, as well as multiplication and division calculations and Calculate the percent...

This TV 411 segment features a lesson from Question Man on how to informally calculate 15% tips at restaurants.

[Free Registration/Login may be required to access all resource tools.] Students will use a chemical formula or mass data to calculate the percent composition of a compound, and then calculate the empirical or molecular formula for a...

In this activity, students calculate the percent composition of a mixture of two arsenic-containing minerals. Step-by-step support and feedback is provided for students who need additional help.

Learn about the relationship between vapor pressure of water and capacity of air to hold water vapor, the relationship between relative humidity and partial pressure of water vapor in the air, and how to calculate vapor density,...

Learn about weak acid and base ionization reactions and the related equilibrium constants, Ka and Kb. Relate Ka and Kb to pH, and calculate percent dissociation.

In this activity, students use the virtual lab to prepare a sucrose solution for a soda recipe. They next calculate the concentration of their solution in terms of molarity, percent mass and density. Finally, they compare the density of...

In this randomized calculation activity, students calculate the empirical formula of a compound given its elemental analysis. Step-by-step support and feedback is provided for students who need additional help.

Use Glencoe's randomly generated self-checking quiz to test your knowledge of finding the area of rectangles. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check...

[Free Registration/Login may be required to access all resource tools.] Students will calculate the concentration of solutions in units of molarity, and use molarity to calculate the dilutions of solutions.

In this teaching resource for Grades 8 to 12, students develop an understanding of how gas prices are calculated, applying their Math skills in ratio, percent, data analysis, etc. to real life scenarios.

This tutorial reviews how to calculate molecular formula by giving students video, exercises, and practice.