CK-12 Foundation
Ck 12: Math Grade 4
Browse resources related to fourth-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
University of Missouri
Famous Trials: The Osage "Reign of Terror" Murder Trials
The "Reign of Terror" that overtook the Osage Reservation in 1921 is just one chapter in the long story of mistreatment of Native Americans by whites, but is one of the most horrifying. Before the chapter ends, untold dozens of Osage...
Quia
Quia: Place Value Rags to Riches
So you want to be a place value millionaire? Test your understanding of place value when you play Rags to Riches. A comprehensive, multiple choice game covering place value concepts with whole numbers and decimals, word form and standard...
University of Missouri
Famous Trials: Lapd (King Beating) Trials (1992 1993)
It seemed like an open-and-shut case. The George Holliday video, played on television so often that an executive at CNN called it "wallpaper," showed three Los Angeles police officers--as their supervisor watched-- kicking, stomping on,...
Econoclass
Econoclass: Joe Wins the Lottery
This example of a person winning $1 million is examined as if he were paid the entire amount all at once, or given $100,000 over the course of 10 years. This example looks at inflation, the present value of money, and the future value of...
Immigration and Ethnic History Society
Iehs: Damian Shiels, "Transatlantic Obligations: Immigrant Remittance Networks"
This article focuses on immigrants to America having to send money back to their home country to the relatives left behind. It offers several examples including Irish immigrants. An estimated $260 million was remitted to Ireland from...
TED Talks
Ted: Ted Ed: Would Winning the Lottery Make You Happier?
Imagine winning a multi-million dollar lottery tomorrow. If you're like many of us, you'd be ecstatic, unable to believe your good luck. But would that joy still be there a few years later? Raj Raghunathan describes a phenomenon called...
My Hero Project
My Hero: Andrew Carnegie
A student essay explaining how Andrew Carnegie, born into poverty, became extremely wealthy, donating over 300 million dollars to various charities and organizations.
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: William Marcy Tweed
William M. Tweed (April 3, 1823 - April 12, 1878), sometimes informally called Boss Tweed, was an American politician who was convicted for stealing between 40 million and 200 million dollars from New York City taxpayers through...
Curated OER
Wikipedia: National Historic Landmarks in Missouri: Liberty Memorial
This building of this memorial started with a group of about 40 citizens, a Memorial Association led by Robert A. Long, and a dedication to build a memorial to the fallen soldiers of WW I. With funding secured (a massive fund raising...
TED Talks
Ted: Ted Ed: The Science of Flint's Water Crisis
The water crisis in Flint, Michigan is a prime example of science being ignored, unknown and even misused. The switch in water source damaged hundreds of millions of dollars of infrastructure, caused deadly bacterial outbreaks and...
Other
Teen Analyst: Salary Tables by Career Field
Explore a table of average salaries for the various career fields. However, these aren't representative of everyone in that field. For example, some television reporters make millions of dollars a year. The salaries listed are a little...
Curated OER
Oil Extraction at Alberta Oil Sands, Canada
A short slide show describing the process of extracting oil from the tar sands. The huge amounts of money ($20 million for a 'shovel') and the huge machines are sure to amaze.
Curated OER
Educational Technology Clearinghouse: Maps Etc: Manufacturing Areas, 1900
A map from 1907 of the United States showing the principal manufacturing areas in 1900. The star symbol in Ohio represents the mean center of manufacturing in the nation. Each symbol represents gross $25,000,000 or fraction more than...
Curated OER
Educational Technology Clearinghouse: Maps Etc: Manufacturing Areas , 1900
A map from 1920 of the United States showing the principal manufacturing areas in 1900. The star symbol in Ohio represents the mean center of manufacturing in the nation. Each symbol represents gross $25,000,000 or fraction more than...
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