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Direct linkWon, Mihye; Krabbe, Heiko; Ley, Siv Ling; Treagust, David F.; Fischer, Hans E. – Educational Assessment, 2017
In this study, we investigated the value of a concept map marking guide as an alternative formative assessment tool for science teachers to adopt for the topic of energy. Eight high school science teachers marked students' concept maps using an itemized holistic marking guide. Their marking was compared with the researchers' marking and the scores…
Descriptors: Science Teachers, Science Instruction, Concept Mapping, Formative Evaluation
Chandrasegaran, A. L.; Treagust, David F.; Mocerino, Mauro – Teaching Science, 2011
This study involved the evaluation of the efficacy of a planned instructional program to facilitate understanding of the macroscopic, submicroscopic and symbolic representational systems when describing and explaining chemical reactions by sixty-five Grade 9 students in a Singapore secondary school. A two-tier multiple-choice diagnostic instrument…
Descriptors: Diagnostic Tests, Chemistry, Foreign Countries, Grade 9
Chandrasegaran, A. L.; Treagust, David F.; Mocerino, Mauro – Journal of Chemical Education, 2009
An alternative program of instruction was implemented with 33 high-achieving Grade 9 students (15-16 years old) in Singapore that overtly focused on the use of macroscopic, submicroscopic, and symbolic representations to describe and explain the changes that occurred during the burning of metals, reactions of dilute acids, ionic precipitations,…
Descriptors: Foreign Countries, Nontraditional Education, High Achievement, Grade 9
