[Environmental Education Units.]

Institution	Minneapolis Independent School District 275, Minn.
Titel	[Environmental Education Units.]
Quelle	(1970), (50 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Dokumenttyp	gedruckt; online; Monographie
Schlagwörter	Biology; Elementary School Mathematics; Elementary School Science; Genetics; Instruction; Instructional Materials; Sampling; Teaching Guides + Suchen Sie Ihr Suchwort? Biologie; Elementare Mathematik; Schulmathematik; Humangenetik; Teaching process; Unterrichtsprozess; Lehrmaterial; Lehrmittel; Unterrichtsmedien; Lehrerhandbuch
Abstract	Two of these three pamphlets describe methods of teaching young elementary school children the principles of sampling. Tiles of five colors are added to a tub and children sample these randomly; using the tiles as units for a graph, they draw a representation of the population. Pooling results leads to a more reliable sample. Practice is given in estimating population sizes by a capture-mark-release-recapture technique, first using colored beans, then with marked mealworms. The variation in estimates caused by sampling is indicated. The third pamphlet, for use with children in grades 4-6, depends upon some knowledge of sampling techniques. Its purpose is to introduce children to some possible explanations of biological diversity. Children study themselves and collect data on tongue-rolling ability, estimating its frequency in the population. Then a continuous variable--weight or length of seeds--is studied. Heredity patterns are developed and the idea of selection introduced. Practice in using histograms to record data is included. Each pamphlet contains background information and suggested teaching techniques. This work was prepared under an ESEA Title III contract. (AL)
Erfasst von	ERIC (Education Resources Information Center), Washington, DC