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Peer reviewedThompson, Ian – Mathematics in School, 1981
A distinction is made between estimation and checking, and an analysis of standard errors made on calculators when pupils are checking answers is given. (MP)
Descriptors: Calculators, Computation, Elementary Secondary Education, Error of Measurement
Peer reviewedHudgins, R. R.; Reilly, P. M. – Chemical Engineering Education, 1989
Discussed are problems encountered when a gas absorption experiment with strong measurement error is used. Notes students either avoid the experiment or report it as defective. Provides ideas to make lab experiments more instructive. (MVL)
Descriptors: Chemical Analysis, Chemical Engineering, Chemistry, College Science
