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Trejo, Sam; Yeomans-Maldonado, Gloria; Jacob, Brian – National Bureau of Economic Research, 2021
Lead poisoning has well-known impacts for the developing brain of young children, with a large literature documenting the negative effects of elevated blood lead levels on academic and behavioral outcomes. In April of 2014, the municipal water source in Flint, Michigan was changed, causing lead from aging pipes to leach into the city's drinking…
Descriptors: Water Quality, Hazardous Materials, Outcomes of Education, Longitudinal Studies
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Güngör, Sema Nur; Özkan, Muhlis – Asia-Pacific Forum on Science Learning and Teaching, 2016
The aim of this study is to teach enzymes, which are one of the biology subjects in understanding which students have a big difficulty, to pre-service teachers through POE method in the case of catalase, which is an oxidoreductase. Descriptive analysis method was employed in this study in which 38 second grade pre-service teachers attending Uludag…
Descriptors: Science Instruction, Biology, Preservice Teachers, Laboratory Experiments