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Analisis Kesalahan Siswa Dalam Menyelesaikan Soal Matematika Pada Materi Operasi Pada Bentuk Aljabar: Indonesian Journal of Science Education and Technology Kodi, Florentina; Lubur, Dorethea Novia Ludo; Making, Samuel Rex Mulyadi; Lede, Yulius Keremata
PEDAGOGIC: Indonesian Journal of Science Education and Technology Vol. 6 No. 4 (2026): PEDAGOGIC: Indonesian Journal of Science Education and Technology (In-Press)
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/ijset.v6i4.7354

Abstract

This study aims to analyze students' errors in solving mathematics problems involving operations on algebraic expressions based on Newman's indicators and to describe changes in these errors following the implementation of the Problem-Based Learning (PBL) model. A descriptive qualitative approach was employed, with students from class VII D at SMP Negeri 1 Lamboya serving as the subjects. Data were collected through tests, interviews, and documentation. The data were analyzed descriptively based on Newman's five indicators—reading, problem comprehension, transformation, process skills, and final answer encoding—and test results were compared with interview findings to substantiate the interpretation. The results indicate that prior to the PBL implementation, students made errors during the problem comprehension, transformation, process skills, and final answer encoding stages, with process skills errors being the most prevalent. Following the PBL implementation, the frequency and level of student errors decreased compared to the pre-test results. Of the 23 students who took the post-test, eight demonstrated improved problem-solving performance, while 15 continued to make errors. These findings suggest that the implementation of Problem-Based Learning can help reduce student errors when solving problems involving operations on algebraic expressions.
Analisis Proses Kognitif Siswa dalam Menyelesaikan Soal Matematika Berdasarkan Taksonomi Bloom pada Materi Persegi dan Persegi Panjang SMP Kristen Weemaringi Lado, Erlis Umbu; Lubur, Dorethea Novia Ludo; Making, Samuel Rex Mulyadi; Lede, Yulius Keremata
PEDAGOGIC: Indonesian Journal of Science Education and Technology Vol. 6 No. 4 (2026): PEDAGOGIC: Indonesian Journal of Science Education and Technology (In-Press)
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/ijset.v6i4.7382

Abstract

This study aims to analyze students' cognitive processes when solving mathematics problems regarding squares and rectangles, based on Bloom's Taxonomy, in the seventh-grade class at Weemaringi Christian Junior High School. A descriptive method was employed, involving the entire seventh-grade cohort of nine students. Data were collected through tests, interviews, and documentation, and subsequently analyzed using the stages of data reduction, data presentation, and conclusion drawing. The results indicate that the students' cognitive processes remain dominated by low- to mid-level thinking skills. Test results show that six students (67%) fell into the medium category and three students (33%) into the low category, with no students reaching the high category. At the C1 cognitive level, students were able to recall previously learned concepts, formulas, and information. However, at levels C2, C3, and C4, some students still struggled to understand concepts, apply formulas, and analyze problems. At levels C5 and C6, students were not yet able to evaluate solution steps or independently create problems and their solutions. The study concludes that the students' cognitive processes have not yet optimally achieved high-level thinking skills. Teachers are advised to provide practice problems that focus on the skills of analyzing, evaluating, and creating
Kemampuan Kognitif Siswa Kekas VIII A dalam Menyelesaikan Soal Matematika Materi Persamaan Linear Satu Variabel Ghello, Dion; Making, Samuel Rex Mulyadi
Indo-MathEdu Intellectuals Journal Vol. 7 No. 4 (2026): Indo-MathEdu Intellectuals Journal (In-Press)
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v7i4.7119

Abstract

This study aims to describe the cognitive abilities of class VIII A students in solving mathematics problems on the material of Single Variable Linear Equations (PLSV) based on the Revised Bloom's Taxonomy indicators. The study used a qualitative approach with descriptive methods. The research subjects were 17 class VIII A students of SMP Negeri 1 Loura who were determined using a total sampling technique because all students in the class were used as research subjects. Data were collected through essay tests, observation, and documentation. The test instrument consisted of six questions representing cognitive ability indicators C1 (remembering), C2 (understanding), C3 (applying), C4 (analyzing), C5 (evaluating), and C6 (creating). Data were analyzed using the Miles and Huberman model which includes data reduction, data presentation, and conclusion drawing, and supported by percentage analysis to group the level of students' cognitive abilities. The results showed that students' cognitive abilities were in the high category, with 29.4% of students in the very high category, 58.8% in the high category, and 11.8% in the medium category. Difficulties were still found in higher-order thinking skills, particularly in the analysis, evaluation, and creation indicators. This finding indicates the need for implementing learning strategies that are more oriented toward developing higher-order thinking skills as the basis for developing learning and evaluation in PLSV materials
Kemampuan Kognitif Siswa Kelas VII B dalam Menyelesaikan Soal Matematika Materi Rasio Making, Samuel Rex Mulyadi; Pati, Filigon J. U.
Indo-MathEdu Intellectuals Journal Vol. 7 No. 4 (2026): Indo-MathEdu Intellectuals Journal (In-Press)
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v7i4.7121

Abstract

Students' cognitive abilities in solving mathematics problems need to be studied to determine the level of concept mastery and thinking skills at each cognitive level, especially on the ratio material which is the basis for understanding various advanced mathematical concepts. This study aims to describe the cognitive abilities of class VII B students in solving mathematics problems on the ratio material. This study uses a qualitative approach with a descriptive method. The research subjects consisted of 12 class VII B students of SMP Negeri 1 Loura who were selected because they had studied the ratio material and represented the characteristics of students' abilities in mathematics learning in that class. The research instrument was in the form of six essay questions based on the Revised Bloom's Taxonomy indicators, namely C1 (remembering), C2 (understanding), C3 (applying), C4 (analyzing), C5 (evaluating), and C6 (creating). Data were collected through tests, observations, and documentation, then analyzed through the stages of data reduction, data presentation, and drawing conclusions. The results showed that students' cognitive abilities were in the high category, with 33.3% of students in the very high category, 50% in the high category, and 16.7% in the medium category. Students still struggle with higher-order thinking skills, particularly analyzing, evaluating, and creating. These findings suggest that mathematics instruction needs to be geared toward developing higher-order thinking skills through contextual problem-solving and learning strategies that encourage critical and creative thinking.