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Liu, Fuchang – School Science and Mathematics, 2009
Four hundred and three 3rd- and 5th-grade Chinese students took the Multiplication Estimation Test or participated in the interview on it, designed to assess their computational estimation performance on whole-number multiplication. Students perform better when tasks are presented visually than orally. Third graders tend to use rounding based…
Descriptors: Mental Computation, Grade 5, Grade 3, Arithmetic
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Sunal, Dennis W.; Tracy, Dyanne M., Eds. – School Science and Mathematics, 1991
A learning cycle activity which allows students to practice process skills by sieving different size fractions of sediments is described. Science topics include weathering, erosion, streams, sedimentation, sedimentary rocks, soils, beaches, dunes, or glacial deposits. Mathematics topics include number lines, ordinal numbers, greater than/less…
Descriptors: Arithmetic, Classification, Earth Science, Elementary Education