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A further challenge might be to ask students to search out headlines, read the articles, after which ask different college students to interpret their headlines in small groups.

Different web sites or information companies aim to promote totally different ideas.

It’s an exciting step ahead,” Tobias Erb, an artificial biologist on the Max Planck Institute for Terrestrial Microbiology in Germany who wrote a commentary on the research, tells The Scientist.

Three lesson ideas for the E.L.L. classroom that incorporate persuasive writing, science and math.

At the microeconomic level, subsequently, it's possible to differentiate between the calls for for and supplies of, say, hats and sneakers, horses and cows, bottling machines and cookie-making equipment.

If the next scarcity is meat and a retailer owner realizes that there's just one package of pork chops left, it would be unwise promote it at auction to the highest bidder.