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Horgan, Joan; Hedge, Robyn – Australian Science Teachers Journal, 1997
Year 11 students investigated the real-world problem of whether screws are really brass. It allowed them to use the colorimeter and computer interface in a way that was easily understood and models normal practice in testing laboratories. Screws were dissolved in nitric acid and their absorbance of red light was compared with a standard curve.…
Descriptors: Chemistry, Computer Interfaces, Computer Uses in Education, Foreign Countries
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Maredi, Mphahlele; Oosthuizen, H. J. – Computers & Education, 1995
Factor-Q is a problem-solving computer assisted instruction system for teaching polynomials in grades 9-12 that addresses the limitations of most problem-solving programs, among others, the user interface. The system is designed to help students master the skills of factorizing polynomials. It demonstrates the ease with which inadequately trained…
Descriptors: Computer Assisted Instruction, Computer Interfaces, Computer System Design, High School Students