ERIC Number: EJ1087050
Record Type: Journal
Publication Date: 2016-Jan
Abstractor: As Provided
Reference Count: 50
Visualization of Problem Solving Related to the Quantitative Composition of Solutions in the Dynamic "GeoGebra" Environment
Kostic, V. Dj.; Jovanovic, V. P. Stankov; Sekulic, T. M.; Takaci, Dj. B.
Chemistry Education Research and Practice, v17 n1 p120-138 Jan 2016
Problem solving in the field of quantitative composition of solutions (QCS), expressed as mass share and molar concentration, is essential for chemistry students. Since successful chemistry education is based on different mathematical contents, it is important to be proficient in both mathematical and chemistry concepts as well as interconnections between them. One of the main objectives of this study was to create dynamic worksheets, applying software "GeoGebra," which makes a strong link between real life problems from the field of QCS and their visual representations. The created models offer interactive connection within triangle-numerical data, concrete and abstract visual representations of the problem. The other important issue was to investigate if application of this novel teaching approach will lead to improvement of students' achievements in QCS problem solving. Ninety students of the first, second and third year of the bachelor chemistry study program, were subjects of the research. The students were classified into experimental and control groups based on the results of the initial test. Both groups were trained in the same pool of problems from the QCS field. In the control group the traditional approach based on algebraic methods was applied. The new didactic approach to the graphical method based on the dynamic properties of "GeoGebra" was presented to the experimental group. After two months, the final testing of all students was conducted. The students' answers were analysed and it is shown that the results of the experimental group were significantly better than the results of students in the control group. The results of these research studies confirmed that the students' learning achievement in solving QCS problems is better when they are familiar with the "GeoGebra" environment.
Descriptors: Problem Solving, Chemistry, Science Instruction, Mathematical Concepts, Computer Software, Technology Uses in Education, Educational Technology, Experimental Groups, Control Groups, Conventional Instruction, Comparative Analysis, Algebra, Graphs, Geometric Concepts, College Students, College Science, Pretests Posttests, Science Process Skills, Foreign Countries
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Publication Type: Journal Articles; Reports - Research; Tests/Questionnaires
Education Level: Higher Education; Postsecondary Education
Authoring Institution: N/A
Identifiers - Location: Serbia