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Direct linkChu, Hye-Eun; Treagust, David F.; Chandrasegaran, A. L. – Research in Science & Technological Education, 2009
A large scale study involving 1786 year 7-10 Korean students from three school districts in Seoul was undertaken to evaluate their understanding of basic optics concepts using a two-tier multiple-choice diagnostic instrument consisting of four pairs of items, each of which evaluated the same concept in two different contexts. The instrument, which…
Descriptors: Optics, Diagnostic Tests, Foreign Countries, Multiple Choice Tests
Calik, Muammer; Ayas, Alipasa; Ebenezer, Jazlin V. – Research in Science & Technological Education, 2009
The study aims to demonstrate evidence of (a) students' conceptual change on solution rates; (b) students' sub-microscopic explanations of dissolution; and (c) retention of the concepts of solution rates. The sample consists of 44 Grade 9 students (18 boys and 26 girls) drawn purposively from two different classes (22 each) in the city of Trabzon,…
Descriptors: Constructivism (Learning), Logical Thinking, Concept Formation, Foreign Countries
Atasoy, Basri; Akkus, Huseyin; Kadayifci, Hakki – Research in Science & Technological Education, 2009
The purpose of this study was to compare the effects of a conceptual change approach over traditional instruction on tenth-grade students' conceptual achievement in understanding chemical equilibrium. The study was conducted in two classes of the same teacher with participation of a total of 44 tenth-grade students. In this study, a…
Descriptors: Experimental Groups, Control Groups, Quasiexperimental Design, Chemistry
