PBS
Pbs: The Lowdown: The Math of Trash: Percents and Proportions
Discover how percents and proportions help explain issues like climate change, composting, and zero waste in this video from KQED. In the accompanying classroom activity, students estimate the percentage of various types of trash that...
Math Slice
Math Slice: Percentage
Practice finding the percent of a number by using a money simulation and dragging dollars from one box to the next to represent a percent of the whole.
Calculator Soup
Calculator Soup: Decimal to Percent Calculator
Convert decimals to percentages with this calculator. Input a decimal number to convert both the whole number and decimal part of the number to a percent value.
Texas Education Agency
Texas Gateway: Ap Physics: 1.3 Accuracy, Precision, and Significant Figures
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...
Illustrative Mathematics
Illustrative Mathematics: F Le Carbon 14 Dating, Variation 2
In this task on exponential decay, students calculate what the amount of Carbon 14 left in a preserved plant will be as time passes and when one microgram will be all that is left. Aligns with F-LE.A.1.c.
Canadian Wildlife Federation
Hinterland Who's Who: Seabirds
Get the facts about seabirds. This group of birds makes up about three percent of the various species, even though two-thirds of the Earth is covered in water. Learn some unique facts and characteristics of seabirds. Also included in...
McGraw Hill
Glencoe: Self Check Quizzes 1 Making Predictions
Use Glencoe's randomly generated self-checking quiz to test your knowledge of making predictions using surveys. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...
Annenberg Foundation
Annenberg Learner: Water Resources
Freshwater accounts for only some 6 percent of the world's water supply, but is essential for human uses such as drinking, agriculture, manufacturing, and sanitation. As discussed above, two-thirds of global freshwater is found underground.
A&E Television
History.com: Hispanic History Milestones: Timeline
The American Hispanic/Latinx history is a rich, diverse and long one, with immigrants, refugees and Spanish-speaking or Indigenous people living in the United States since long before the nation was established. America's Hispanic...
State Library of North Carolina
N Cpedia: Latinos
Latinos, also referred to as Hispanics, lived in North Carolina in relatively small numbers until the 1980s, when many people of Mexican and Central American descent began coming to the state in search of seasonal farm work. By the end...
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