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ERIC Number: EJ1082093
Record Type: Journal
Publication Date: 2015
Pages: 19
Abstractor: As Provided
Reference Count: 32
ISBN: N/A
ISSN: EISSN-1306 3065
Investigating High School Students' Understanding of Chemical Equilibrium Concepts
Karpudewan, Mageswary; Treagust, David F.; Mocerino, Mauro; Won, Mihye; Chandrasegaran, A. L.
International Journal of Environmental and Science Education, v10 n6 p845-863 2015
This study investigated the year 12 students' (N = 56) understanding of chemical equilibrium concepts after instruction using two conceptual tests, the "Chemical Equilibrium Conceptual Test 1" ("CECT-1") consisting of nine two-tier multiple-choice items and the "Chemical Equilibrium Conceptual Test 2" ("CECT-2") consisting of four structured questions. Both these tests were administered before and after the intervention. Students' responses to the items in both the instruments indicated limited understanding of the various concepts related to chemical equilibrium. Less than 50% of the students provided correct responses to four of the nine items in the "CECT-1." The total scores in the "CECT-1" ranged from 0 to 8 with a mean score of 4.14 (out of a maximum of 9). In the "CECT-2" the total scores ranged from 7 to 17 with a mean score of 11.0 out of a maximum score of 22. Almost half the number of students (44.6%) scored less than 50% of the total marks in the "CECT-2"; only 0% to 42.9% of students scored the maximum possible marks for each of the four items while achievement in all four items of the "CECT-2" was below 50%. The findings will be valuable and assist teachers in planning their instruction on chemical equilibrium by taking into consideration students' preconceptions about the topic.
International Consortium for the Advancement of Academic Publication. Abant Izzet Baysal University, Faculty of Education, 14280 Golkoy-Bolu, Turkey. e-mail: editorijese@gmail.com; Web site: http://www.ijese.com
Publication Type: Journal Articles; Reports - Research
Education Level: High Schools; Secondary Education; Grade 12
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Malaysia