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Direct linkSeng, Set; Kita, Masakazu; Sugihara, Reiko – Journal of Chemical Education, 2007
The use of harmful organic solvents in classrooms has become a critical issue of concern in the field of chemistry education. This article describes a classroom activity at a high school in which an acrylic fabric was used as the extraction medium in the analysis of the detergent concentration in water instead of organic solvents. Dyes were used…
Descriptors: Chemistry, High School Students, Secondary School Science, Class Activities
Download full textMinnesota State Dept. of Children, Families, and Learning, St. Paul. – 1998
Developed by classroom teachers during the development phase of Minnesota's Graduation Standards, this performance package is made up of locally designed assignments that, taken together, show whether a student has learned and can apply the knowledge and skills related to comprehending technical information from documents or electronic media and…
Descriptors: Academic Discourse, Academic Standards, Class Activities, Laboratory Experiments
