CD Tesis
Pengembangan Perangkat Pembelajaran Menggunakan Problem Based Learning Pada Materi SPLDV Untuk Memfasilitasi Kemampuan Pemecahan Masalah Matematis Peserta Didik
This research is motivated by the importance of mathematical problem solving abilities for students. Problem solving is a basic ability that must be possessed by students, but in reality students' mathematical problem solving abilities are still relatively low. This can be seen from several previous studies, researchers' interviews with mathematics teachers in several schools and test results with mathematical problem solving questions conducted by researchers. The solution to improve students' mathematical problem solving abilities is to provide a PBL (Problem Based Learning) learning model. Several previous studies explained that the PBL model can have a good influence on increasing students' mathematical problem solving abilities. Based on this, this study aims to develop learning tools using PBL on SPLDV material to facilitate valid and practical students' mathematical problem solving abilities. The learning tools developed are syllabus, lesson plans and worksheets.
The development of this learning tool uses the 4D development model which consists of define, design, develop, and disseminate. The developed device was validated by three expert validators and 3 user validators who were then tested on small groups of 9 students and large groups of 30 students. The instruments used in data collection in this study consisted of syllabus validation sheets, lesson plans, worksheets and teacher and student response questionnaires.
The results of the analysis at the define stage included (a) the initial and final analysis, namely conducting interviews with teachers and observations related to students' mathematical problem solving abilities and learning tools used in the learning process which found that students' problem solving abilities were still low and learning tools used by the teacher has not been developed independently, (b) student analysis is carried out by observing and interviewing students as well as conducting literature studies related to students' mathematical problem solving abilities which found that students still experience difficulties in solving math problems, (c ) analysis of material, namely identifying, detailing, and compiling relevant SPLDV material which is material for class VIII odd semesters in the 2013 curriculum, (d) at the task analysis stage, researchers analyzed KD related to SPLDV material, analysis was carried out as a reference for compiling competency achievement from KD that has been selected, (e) at the learning objectives analysis stage, the researcher summarizes the results of the task analysis and material analysis used as a guide in preparing the syllabus, lesson plan, and LKPD on SPLDV material. The design stage is the researcher's activity in designing learning tools by creating an initial format consisting of five meetings with the scope of the material, namely: (a) understanding SPLDV (b) Completing SPLDV using the graphic method (c) Completing SPLDV using the substitution method (d ) Solving SPLDV by elimination method (e) Solving SPLDV by mixed method.
In the develop stage, the validation results on the syllabus, lesson plans and worksheets meet very valid criteria. The syllabus validation results reached an average of 93.40%, lesson plans reached an average of 93.11% and worksheets with
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an average of 90.13%. Learning devices that have been declared valid are tested on small groups to determine the legibility of learning devices. The results of the data analysis obtained meet the very practical criteria with an average score of 95.28%. Furthermore, the revised device based on suggestions from students was tested again on students in groups. Practical results through student response questionnaires meet very practical criteria with an average score of 96.33% and through teacher response questionnaires with an average score of 93.60% meaning that learning devices with the PBL model can facilitate students' problem solving abilities.
The disseminate stage, learning tools with the PBL model that have been tested and declared valid and practical for students in facilitating the ability to solve mathematical problems are distributed by researchers on a wider scale. Dissemination is carried out through seminars on results, preparation of articles for publication in journals and submission of tools to schools.
Keywords: Learning Devices, PBL, KPMM, SPLDV.
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