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All Journal (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING
Meli Hendriani
IKIP Siliwangi, Cimahi, Indonesia
Education Mathematics Other

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The Development of Problem-Based Learning Students Liveworksheets on Three Variables Linear Equation System Meli Hendriani; Euis Eti Rohaeti; Nelly Fitriani
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 9 No. 2 (2026): VOLUME 9 NUMBER 2, JUNE 2026
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v9i2.28346

Abstract

Problem-solving ability is important for students to possess because life is inseparable from problems. However, in reality, students' problem-solving ability, especially in mathematics learning, remains relatively low, including in the Three Variable Linear Equation System (SPLTV) material. This study aims to validate the problem-based learning student worksheet, assisted by liveworksheets, for the SPLTV material as an alternative teaching material to improve students' mathematical problem-solving ability. The research method used a Development Study research design, involving four material experts and two media experts in the validation process. The research instrument used questionnaires for validation and a one-to-one interview instrument with three grade X MA students. Data analysis was carried out using descriptive statistical techniques to calculate the average percentage of the validation results. The validation results showed that the worksheet prototype was categorized as very valid with a score of 86.14%, and the learning media was categorized as very valid with a validity score of 91.67%. The interview results with three students indicated that the worksheet was feasible and practical to use. Based on the research results, the problem-based learning worksheet, assisted by Liveworksheets, met the validity standards; therefore, it is feasible to test after revisions based on the validators' suggestions.
Improving Mathematical Problem-Solving Ability and Learning Independence through Liveworksheets-Assisted Problem Based Learning Model on Senior High School Meli Hendriani; Euis Eti Rohaeti; Nelly Fitriani
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 9 No. 3 (2026): VOLUME 9 NUMBER 3, SEPTEMBER 2026
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v9i3.31255

Abstract

Mathematical problem-solving skills and independent learning are essential for facing real-life challenges. In reality, students’ abilities in both aspects tend to be low. This research aims to determine the feasibility, practicality, and effectiveness of developing a problem-based learning model assisted by Liveworksheets to improve students’ mathematical problem-solving ability and learning independence. The research method used was Research and Development according to the Borg and Gall model, with subjects of 10 students in the limited trial, 30 students in the broader trial, and 60 students in the experimental and control classes. The research instruments included interview guidelines, observation questionnaires, expert validation and response scales, students’ learning independence scales, and mathematical problem-solving tests. Data analysis was conducted using descriptive statistical analysis techniques. The results of expert validation showed that the developed product was feasible to use, with a validity score of 94%. The student response averaged 90.33%, and the teacher response averaged 87.3%, indicating that the product was feasible and practical to implement. The statistical analysis of the posttest results showed a significant difference between the experimental and control classes, with a p-value <0.05 (0.001). The N-gain analysis showed that the experimental class experienced a greater improvement, with a gain score of 0.73 compared to 0.55 in the control class. Students’ learning independence was higher in the experimental class, with an average score of 77.8% (good criteria). These findings demonstrate that the problem-based learning model assisted by Liveworksheets is feasible, practical, and effective in improving students’ mathematical problem-solving ability and learning independence.
Co-Authors Eti Rohaeti, Euis Fitriani, Nelly