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All Journal Jurnal Elemen Jurnal Riset Pembelajaran Matematika Sekolah Journal of Vocational and Career Education
Suryani, Titin
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Education Mathematics Other

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Analisis Learning Obstacle Konsep Volume Tabung dan Kerucut Siswa Kelas VIII Suryani, Titin; Jamilah; Astuti, Reni
JURNAL RISET PEMBELAJARAN MATEMATIKA SEKOLAH Vol. 9 No. 1 (2025): Jurnal Riset Pembelajaran Matematika Sekolah
Publisher : Program Studi Pendidikan Matematika FMIPA Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jrpms.091.09

Abstract

Penelitian ini bertujuan untuk menganalisis hambatan belajar yang dihadapi siswa dalam menyelesaikan permasalahan pada volume tabung dan kerucut. Penelitian ini menggunakan metode deskriptif kualitatif. Proses pemilihan sampel yang digunakan adalah purposive sampling. Subjek dalam penelitian ini adalah siswa kelas VIII SMP AL-Mumtaz Pontianak yang berjumlah 26 orang. Proses pengumpulan data dilakukan dengan menggunakan tes diagnostik, wawancara dan dokumentasi. Teknik analisis data dalam penelitian ini dilakukan melalui proses menganalisis data yang telah dikumpulkan, kemudian menarik kesimpulan. Tahapan dalam penelitian ini adalah 1) melakukan tes diagnostik, 2) menganalisis jawaban siswa untuk mengidentifikasi hambatan belajar, 3) wawancara dengan siswa, 4) wawancara dengan guru. Hasil penelitian ini ditemukan: penyelesaian soal tanpa menyebut informasi yang tersedia dan diminta bisa disebabkan oleh ontogenic psychological, ketidaktahuan siswa terhadap rumus yang diperlukan bisa disebabkan oleh ontogenic concept, mampu mengidentifikasi informasi soal tetapi salah menerapkan langkah-langkah bisa disebabkan oleh epistemological concept, kesalahan dalam memasukkan angka, perhitungan, dan penyelesaian soal bisa disebabkan oleh epistemological procedure, kesalahan akibat keterbatasan siswa dalam perhitungan bisa disebabkan oleh epistemological operational technique, pendekatan guru yang terlalu prosedural tanpa menyesuaikan kendala siswa dapat menyebabkan didactical obstacle. Hasil wawancara terhadap 26 siswa mengungkapkan bahwa: 1) soal-soal yang disampaikan peneliti tidak pernah diberikan oleh guru, 2) siswa belum memahami sepenuhnya konsep volume silinder dan kerucut, 3) kesalahan konseptual dalam memilih prosedur penyelesaian soal. masalah.
The Development of a Digital Electronics Trainer for Teaching Fundamentals of Electronics Engineering Suryani, Titin; Anis, Samsudin; Arief, Ulfah Mediaty
Journal of Vocational and Career Education Vol. 9 No. 2 (2024): December 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i2.29004

Abstract

The teaching of Fundamentals of Electronics Engineering often faces challenges in bridging theoretical knowledge with practical application. A lack of interactive and contextual learning media hinders students’ comprehension of foundational concepts and diminishes their motivation to learn. This study addresses these challenges by developing a digital electronics trainer as an instructional tool to support the learning process. The trainer is designed and implemented to help students explore digital electronics concepts—specifically logic gates—through relevant problem-solving activities. The aim is to enhance students’ conceptual understanding and engagement. This research employs a Research and Development (R&D) approach, utilizing the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The results demonstrate the significant effectiveness of the digital electronics trainer in improving students’ cognitive abilities. An N-Gain score of 0.71 indicates a high level of cognitive improvement in the experimental group using the trainer, compared to the control group that relied on textbook-based learning.
Overcoming learning obstacles in cylinder and cone volume: A didactic design research approach Suryani, Titin; Jamilah; Astuti, Reni
Jurnal Elemen Vol 11 No 4 (2025): October
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i4.31842

Abstract

Many students encounter learning obstacles when understanding the volume of cylinders and cones; however, few studies have explicitly integrated these obstacles into didactic design. This study aimed to develop a didactic design to address specific learning obstacles in understanding the volume of cylinders and cones. Using a Didactic Design Research (DDR) approach grounded in Brousseau’s Theory of Didactic Situations, the study involved 28 seventh-grade students and a mathematics teacher from a junior high school in Pontianak, selected through purposive sampling. Data were collected through observations, diagnostic tests, and interviews and then analyzed qualitatively using interpretative and critical techniques. The didactic design consisted of four didactic situations: action, formulation, validation, and institutionalization, implemented in classroom practice. The institutional phase revealed several limitations, particularly a lack of sufficient scaffolding and inadequate visual support for students’ spatial reasoning. The findings indicate that addressing epistemological obstacles, such as misconceptions regarding the interpretation of height and base area in three-dimensional solids, can enhance students’ conceptual understanding. The study suggests that integrating learning obstacle analysis into didactic design helps refine future implementations to better anticipate students’ cognitive development.
Co-Authors JAMILAH Jamilah Samsudin Anis Ulfah Mediaty Arief