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All Journal Griya Journal of Mathematics Education and Application Jurnal Didaktik Matematika
Sry Rita Puspitasari
Universitas Palangka Raya
Education Mathematics

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Dilema Peningkatan Literasi Matematika melalui Media Pembelajaran E-colands pada Siswa Kelas VII, VIII, dan IX Sasalia , Putri; Puspitasari, Sry Rita; Agustianingsih, Ramayanti; Demitra, Demitra; Milala, Loy Cindy Br; Oktavia, Setri
Griya Journal of Mathematics Education and Application Vol. 5 No. 4 (2025): Desember 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i4.843

Abstract

The low mathematical literacy of Indonesian students based on PISA results necessitates innovation in mathematics learning. This study aims to analyze the effectiveness of peatland-based digital comic media (Electronic comic of Peatland/E-colands) in improving junior high school students' mathematical literacy and to reveal the dilemma of improving mathematical literacy occurring in grades VII, VIII, and IX. The research method used was quantitative with a pretest-posttest group design. The research sample consisted of 23 grade VII students, 26 grade VIII students, and 26 grade IX students selected using a purposive sampling technique. Data were collected through mathematical literacy tests in descriptive form and analyzed using descriptive statistics, followed by t-test and n-gain score analysis. The results showed that E-colands media was effective in improving mathematical literacy with a medium improvement category in all classes (n-gain: VII=0.68; VIII=0.41; IX=0.55). However, a dilemma was found where the significant improvement only changed the literacy criteria from low to medium in class VII, while classes VIII and IX remained in the low category even though their scores increased. This dilemma indicates the presence of cumulative learning loss, differences in psychological and motivational factors, and the need for longer and more integrated interventions for holistic mathematical literacy improvement.
Development of a Mathematics Module Based on The Huma Betang Context for Teaching Polyhedra Putri Sasalia; Sry Rita Puspitasari; Demitra Demitra; Loy Cindy Br. Milala
Didaktik Matematika Vol 12, No 2 (2025): October 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jdm.v12i2.42413

Abstract

Abstract. The teaching module is a very important component in the learning process. A good teaching module will affect the learning process and results of students. A teaching module that provides a real context in accordance with the lives of students makes the learning process more meaningful. The real context raised in this study is the DAS, where rivers are the main natural resources for the people of Kalimantan, especially Central Kalimantan. Therefore, the researcher aims to develop a junior high school mathematics teaching module based on RME in the watershed environment. The research method uses a development method with the Dick Carey model, namely (1) Identify Instructional Goal, (2) Conduct Instructional Analysis; (3) Analyze Learners and Contexts; (4) Write Performance Objectives; (5) Develop Assessment Instruments; (6) Develop Instructional Strategy; (7) Develop and Select Instructional Materials; (8) Design and Conduct Formative Evaluation of Instruction; (9) Revise Instruction; (10) Design and Conduct Summative. The results of the study from the first to the seventh stages were obtained from three experts, namely the teaching module in the aspect of element quality obtained a high level of validity of 95%. The aspect of the characteristic module and the aspect of language obtained the same percentage, namely 85% high validity. The last aspect, PBL RME aspect, obtained a high level of validity of 88%. While in the Design and Conduct Formative Evaluation of Instruction, Revise Instruction, and Design and Conduct Summative stages, it was obtained from the results of 150 junior high school student responses, namely the response of students to the learning process using the flat-sided spatial geometry teaching module based on RME in the DAS environment, namely 62 out of 150 students or 41.3% of all students said that the teaching module obtained a fairly good category.
Co-Authors Agustianingsih, Ramayanti Demitra Demitra Demitra, Demitra Loy Cindy Br. Milala Milala, Loy Cindy Br Oktavia, Setri Putri Sasalia Sasalia , Putri