Use Glencoe's randomly generated self-checking chapter test to assess your knowledge on percent applications. Each question has a "Hint" link to help. After completing the test students can click the "Check It" button and the correct...

Download these worksheets to sharpen your percent calculation skills. Sheets focus on the percentage of a number, percentage rate, and percentage increase/decrease.

Learn how to calculate sale price when combining two "percent-off" discounts in this video from KQED. In the accompanying classroom activity, students develop and share a variety of strategies, including modeling with a 10 x 10 grid to...

Students will look at restorative justice as a competing model, learn more about the state of the criminal justice system, and express their opinions about the topic to an elected leader. The prison population has exploded in the United...

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

Provides a Carbon 14 Dating Calculator to compute the percent of Carbon 14 remaining after a given number of years. Also calculates how many years have elapsed from how much Carbon 14 remains.

The purpose of this task is to introduce students to an exponential decay function in the form f(x) = abx, with a concrete interpretation of the decay factor b. A table shows the rebound height of a basketball for each successive bounce....

This interactive site helps students determine the appropriate number of significant figures in both addition and subtraction, as well as multiplication and division calculations. They also calculate the percent uncertainty of a...

Use Glencoe's randomly generated self-checking quiz to test your ability to use graphs to make predictions. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check...

Here's a concise timeline that highlights the important facets of reconstruction from the announcement of Abraham Lincoln's reconstruction plans to the end of reconstruction at the election of Rutherford B. Hayes.

It takes a lot of fuel to heat our homes, preserve our food, and power our gadgets. And for 40 percent of the world, cheap, plentiful coal gets the job done. But coal also releases pollutants into the air, causing environmental damage...

Detailed discussion of stoichiometry, mols, and percents. Includes examples showing dimensional analysis (factor-lable method) and a link to the mole road map (a diagram which leads one through the stoichiometric problem-solving process).

Calculate a tip or gratuity and get the total amount to pay. Enter your meal or dinner cost along with the tip percentage. If you are splitting the cost at a restaurant among several people you can divide by the number of people to get...

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

Use Glencoe's Math Course 3 randomly generated self-checking quiz to test your knowledge of writing algebraic expressions and equations. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom...

Use Glencoe's Math Course 3 randomly generated self-checking quiz to test your knowledge of using the Pythagorean Theorem. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page...

Probably one of the coolest things to imagine is life on another planet! What would it look like? What could it possibly be? Scientists have discovered a planet much like Earth. "I would say that the chances for life on this planet are...