Facilitating high school students' use of multiple representations to describe and explain simple chemical reactions

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....

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Vydáno v:Teaching science (Deakin West, A.C.T.) Ročník 57; číslo 4; s. 13 - 20
Hlavní autoři: Chandrasegaran, A. L, Treagust, David F, Mocerino, Mauro
Médium: Journal Article
Jazyk:angličtina
Vydáno: Deakin Australian Science Teachers Association 01.12.2011
Témata:
Chemical reactions
Chemistry
Comparative Analysis
Concept Mapping
Control Groups
Diagnostic Tests
Evaluation
Foreign Countries
Grade 9
High School Students
Methods
Outcomes of Treatment
Science Education
Science Instruction
Science teaching
Sciences education
Scientific Concepts
Secondary education
Secondary school science
Secondary School Students
Singapore
Student improvement
Study and teaching
Teaching effectiveness
Teaching methods
Year 9
Singapore
ISSN:1449-6313, 1839-2946
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Popis
Shrnutí: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 consisting of fifteen items was administered after nine months of instruction. Analysis of the students' performance on the diagnostic test showed improved understanding of the use of multiple representations compared to that of seventy-six students of similar achieving ability in the prescribed program of instruction. [Author abstract]
Bibliografie:Refereed article. Includes bibliographical references.
Teaching Science; v.57 n.4 p.13-20; December 2011
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ISSN:1449-6313
1839-2946