The Effect of the PBL Model with the TTW Strategy in Terms of Problem-Solving Skills and Learning Motivation of Junior High School Students
Abstract
This research aimed to: (1) Describe the effectiveness of the PBL learning model with the TTW strategy in mathematics learning for eighth-grade junior high school students on statistics material, viewed from students' problem-solving abilities and learning motivation; (2) describe the effectiveness of the PBL learning model in mathematics learning for eighth-grade junior high school students on statistics material, viewed from students' problem-solving abilities and learning motivation; (3) if both are effective, describe which learning model is more effective between the PBL with TTW strategy model and the PBL model, viewed from students' problem-solving abilities and learning motivation on statistics material. This research is a quasi-experimental study using a pretest-posttest nonequivalent control group design. The population of this study was all students of class VIII of SMPN 2 Mlati, consisting of four classes. The sample of this study was selected by purposive sampling and class VIIIA was selected as the control class using the PBL model and class VIIIB as the experimental class using the PBL model with the TTW strategy. Data collection in this study used questionnaires and tests. The questionnaire was used to measure students' learning motivation and the test was used to measure students' problem-solving abilities. The criteria for the effectiveness of this study were based on: the average posttest problem-solving ability score is at least 75, the average posttest learning motivation score is at least 72, and the average posttest ability is greater than the pretest. The results of the study at the significance level showed that: (1) the PBL model with the TTW strategy was effective in terms of students' problem-solving abilities and learning motivation; (2) the PBL model was effective in terms of students' problem-solving abilities and learning motivation; (3) the PBL model with the TTW strategy was more effective compared to the PBL model in terms of students' learning motivation, but the PBL model with the TTW strategy was not more effective compared to the PBL model in terms of problem-solving abilities.
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DOI: http://dx.doi.org/10.18415/ijmmu.v12i11.7134
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