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Joseph Moray; National Council of Teachers of Mathematics; John M. Davidson
Summary:
Delineates interesting facets of the development of our decimal system. Compares the additive, subtractive, multiplicative, and positional notation aspects of the Chinese, Babylonian, Egyptian, and...
Portrays the role of developmental genetics in dealing with ways phenotypes come into being through the action of genes. Presents a complete discussion of the Creeper domestic fowl--its genetic bas...
Describes the ways in which genes produce phenotypic differences by acting very early in embryonic development. Shows that this action may take place at a distance through chemical messengers (pitu...
Uses animation to show the mechanical and muscular processes involved in the digestion of food. Includes the absorption of digested food, water, and salts into the blood and the function of the liver.
Uses animation to demonstrate the chemical processes of digestion. Shows the chemical breakdown of foods, the structure and functions of the glands involved, the absorption of digested foods, and t...
United States Navy, Division of Personnel Supervision and Management; United States Navy Bureau of Aeronautics; Atlas Educational Film Company
Summary:
U.S. Navy training film intended to instruct managers how to maintain workplace discipline effectively. Dramatic scenarios contrast ineffective managerial styles with better approaches. Stresses th...
Shows through readings, paintings, and natural photography the development of the portrayal of English lakes and landscapes by painters, poets, and others. Depicts the printing of illustrated tour...