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...
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...
Scholastic
Scholastic: Conversions Rock
Students will learn and reinforce skills for equivalent conversions of fractions, decimals and percents.
Other
The Education Center: Breakfast It's a Big Deal!
This is a PDF worksheet where students use a real world scenario to find percents using proportional reasoning.
Other
Pep: Hit the Deck: A Collection of Math Games
This is a collection of math games ranging from Kindergarten to the upper elementary grades, using only an ordinary deck of playing cards. There are games covering addition, subtraction, multiplication, division, fractions, percents,...
Science Struck
Science Struck: How to Calculate Percentage Increase
Explains and demonstrates how to calculate the percentage increase from year to year and how to calculate it using an Excel spreadsheet.
PBS
Pbs: Real Life Math: Physical Trainer
The general manager of a fitness center explains how numerical calculations, percentages, and ratios are critical to his job in this video from KAET. In the accompanying classroom activity, students explore percentages, fractions, and...
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.
Alabama Learning Exchange
Alex: Determining Percent of Seed Germination
In this project, students will conduct an experiment to determine the percentage of seed that will germinate in a given time frame. Students will produce charts and graphs to represent the results algebraically. Mathematics and...
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...
United Nations
Stats Division: Indicators on Youth & Elderly Populations
United Nations world population statistics on percent of youth and elderly in every country. Organized into a chart.
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...
Texas Education Agency
Texas Gateway: Humidity, Evaporation, and Boiling
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,...
A&E Television
History.com: How Levee Failures Made Hurricane Katrina a Bigger Disaster
By the time Hurricane Katrina made landfall near Buras, Louisiana early on the morning of August 29, 2005, the flooding had already begun. In all, levees and floodwalls in New Orleans and surrounding areas fell in more than 50 locations...
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...
A&E Television
History.com: How Interstate Highways Gutted Communities and Reinforced Segregation
America's interstate highway system cut through the heart of dozens of urban neighborhoods. Congress approved the Federal-Aid Highway Act of 1956, authorizing what was then the largest public works program in U.S. history. It promised to...
Digital History
Digital History: Social Mobility in the North
Read about the ideal of social equality in the North in the early and mid-1800s and determine if upward mobility was really a possibility for even unskilled laborers.
Son of the South
Son of the South: Christmas Dinner
Using a Thomas Nast political cartoon from 1864, the author explains Lincoln's plan for Reconstruction, a plan that was never to be carried out.
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.
Illustrative Mathematics
Illustrative Mathematics: F Le Us Population 1790 1860
In this task, students are shown a table of U.S. population data between 1790 and 1860 and are asked to explore whether exponential functions would be appropriate to model relationships within the data. The purpose of the task is to help...
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...
Calculator Soup
Calculator Soup: Ordering Fractions Calculator
Compare and order fractions, integers, mixed numbers and decimals in ascending or descending order. Order fractions from least to greatest or from greatest to least.
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