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Kakisako, Mami; Nishikawa, Kazuyuki; Nakano, Masayoshi; Harada, Kana S.; Tatsuoka, Tomoyuki; Koga, Nobuyoshi – Journal of Chemical Education, 2016
This study focuses on the design of a learning program to introduce complexometric titration as a method for determining water hardness in a high school chemistry laboratory. Students are introduced to the different properties and reactions of hard water in a stepwise manner so that they gain the necessary chemical knowledge and conceptual…
Descriptors: Science Instruction, High School Students, Water, Chemistry
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Hernandez, M. I.; Couso, D.; Pinto, R. – Physics Education, 2011
Teaching the acoustic properties of materials is a good way to teach physics concepts, extending them into the technological arena related to materials science. This article describes an innovative approach for teaching sound and acoustics in combination with sound insulating materials in secondary school (15-16-year-old students). Concerning the…
Descriptors: Auditory Perception, Acoustics, Auditory Tests, Scientific Methodology
Earl, F. A. – Performance and Instruction, 1982
Examines backward chaining, a method of producing demonstration films in which sequential steps in a procedure are taught backwards; that is, the last step is taught first, then the next to the last step, and so on. A film designed to teach procedures used in a science experiment is used as an example. (JJD)
Descriptors: Demonstrations (Educational), Foreign Countries, Higher Education, Instructional Design