RESEARCH PAPER
Constructing Scientific Explanations for Chemical Phenomena through Drawings among 8th-grade Students
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Instituto de Educação da Universidade de Lisboa, PORTUGAL
Publication date: 2021-01-20
EURASIA J. Math., Sci Tech. Ed 2021;17(1):em1937
KEYWORDS
ABSTRACT
The current study examines the progress of 8th-grade student drawings and written explanations
of chemical phenomenon, subsequent to being involved in an instructional strategy that explicitly
involves drawing as a supportive toll to construct scientific explanations. Additionally, the study
examines the association between the representation of specific conceptual elements, such as
structure, motion, and interactions, and the explanatory level of students’ written explanations.
These goals were addressed by comparing the students’ collected drawings and explanations by
applying the same open-ended question before and after the instructional strategy. Results show
that after the instructional strategy significantly more students created more accurate drawings
and drawings depicting more conceptual elements. Additionally, the students’ written
explanations significantly changed, progressing from descriptive accounts to discussions of
specific underlying mechanisms at the submicroscopic level. Furthermore, the association
between students’ written explanations and drawings was stronger after the strategy. This study
strengthens the argument for drawing interaction in explanation construction.
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