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Undercounting Unemployment

Source: NewsHour Extra Lesson Plan

Understand how the United States defines unemployment and determines unemployment numbers. Discover the difference between the official unemployment rate and the "real" rate. Details »

Frequency Explorer

Source: The Music Instinct Interactive/Online Activity

Explore music frequency and how it manifests in the sounds around us. Change the frequency balance in common sounds, such as the sound of a rooster, ferry, lion and laughter, and note the effects the changes have on the sounds. Details »

Today I am happy to announce that we release our new website mathmaster.org. http://www.mathmaster.org is a free resource for teachers ... more »

Book of Odds

Posted in Math | Last reply by rodrigke on 11/01/09 rodrigke

One of the first things I see on this website are stats on infidelity and paying for sex. Not the ... more »

Get the inside track on what data analysis concepts your middle schoolers understand - and where they are likely to struggle. Discover concepts that are integral to making comparisons, including distribution and measures of spread, measures of center, graphic representation and interpretation, and communication of data-based conclusions.

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Activity Packs

PBS Teachers Activity Packs

Activity Packs are a growing library of theme-based widgets containing links to high-quality PBS resources and activities for multiple grade levels. If you like one, grab it!

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Everyone's Business

Explore entrepreneurship, competition in the market economy and additional topics including mergers, acquisitions, consolidation, joint ventures and hostile takeovers.

houses
Global Population

Research population trends in developed and less developed countries and consider the political, social and environmental repercussions of discrepancies.

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