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Peer reviewedRobinson, Philip – Mathematics in School, 1989
Analyzes fifth graders' approaches for solving the problem of the distance to the horizon. Describes determining the area bounded by the horizon. (YP)
Descriptors: Elementary School Mathematics, Geometry, Grade 5, Mathematical Applications
Peer reviewedCemen, Pamala Byrd – Arithmetic Teacher, 1989
Outlines the development of a lesson structured around four stages of problem-solving. Provides five problems and questions for understanding, getting started, and for extension in each of the problems. (YP)
Descriptors: Elementary Education, Elementary School Mathematics, Grade 4, Grade 5
