This teacher's guide has been written for the elementary classroom teacher as an aid and not as a course of study. The guide lists units of study that might be undertaken in any classroom and indicates objectives, activities, teaching aids, and reference materials that will be helpful in the development of the unit. Topics covered include conservation, geology, soil, seeds, trees, plants in their habitats, bacteria, molds, birds, mammals, reptiles and amphibians, arthropods, fish, pond water, oceanography, light, electricity, magnetism, weather, scientific weights and measurements, space, flight and the senses. The guide includes a listing of free films available from a variety of sources. [Not available in hardcopy due to marginal legibility of original document.] (BB)