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Solicit from the group the problem at hand : to create a model of a fish in a realistic environment , and the steps that need to be followed . Zillman leaves his position this year . Every morning the waves built up from a flat calm at dawn to a strength and height that by midday would seriously impede our return journey . The students should be able to identify the flight feathers as special contour feathers on a bird 's wing that lift the bird off the ground keeping it in the air much the same way an airplane wing does . While many have written off any hope of progress this year , Archer has waged a lonely but spirited campaign to put Social Security on firm fiscal ground , even while allowing Americans for the first time to invest a portion of their retirement nest egg in the stock market , " reporter Eric Pianin writes .