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Emphasizes the importance of proper cleaning in the care of teeth, and illustrates how the teeth are affected by excessive use of refined sugar. Identifies the kinds of bacteria that change sugar t...
Presents Ruth, Jump, Marjorie Gestring, and others diving from a 33-foot tower to show championship form in diving. Pictures Iris Cummings and the Hopkins twins as they demonstrate the breast strok...
Slow-motion and underwater photography are used in demonstrating how swimming students emulate the motins of the dolphin as they learn the dolphin kick, the accompanying body undulations and the bu...
National Commission on Safety Education, National Education Association
Summary:
Economical driving practices are suggested by a service station operator to a boy who has just received permission to drive the family car alone. Includes care of the car's finish, warming up of t...
Students demonstrate the procedures that may be applied to fashion a space design. Details the making of an initial sketch, a three-dimensional model, and a final structure. Shows steps in the cre...
A second-grader's experiences during a day without numbers cause him to want to study arithmetic and to realize the value of numbers in his everyday living. All the class but Bob enjoy arithmetic....