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by Michaels, Sarah, 1953- | Shouse, Andrew W | Schweingruber, Heidi A | National Research Council (U.S.). Board on Science Education | ebrary, Inc.
by Duschl, Richard A. (Richard Alan), 1951- | Schweingruber, Heidi A | Shouse, Andrew W | National Research Council (U.S.). Committee on Science Learning, Kindergarten Through Eighth Grade | ebrary, Inc.