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All Journal Lemma: Letters of Mathematics Education The International Journal of Mathematics and Sciences Education
Hapsari, Agnesi Alifia
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Education Mathematics Other

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ANALISIS FAKTOR KESULITAN MAHASISWA PENDIDIKAN MATEMATIKA DALAM MENYUSUN BAHAN AJAR MATEMATIKA Hapsari, Agnesi Alifia; Darmawan, Puguh
JURNAL LEMMA Vol 11, No 1 (2024): Lemma: Letters of Mathematics Education
Publisher : Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/jl.2024.v11i1.8953

Abstract

Penelitian ini menganalisis faktor-faktor yang menyebabkan kesulitan mahasiswa pendidikan matematika dalam menyusun bahan ajar matematika. Jenis penelitian ini adalah penelitian studi kasus dengan pendekatan kualitatif. Data diperoleh melalui wawancara pada 2 Oktober 2024 dengan tiga subjek yang merupakan mahasiswa yang menempuh mata kuliah bahan ajar matematika. Subjek dipilih menggunakan metode purposive sampling sehingga sampel bisa mewakili seluruh kesulitan yang dialami subjek penelitian. Subjek berasal dari salah satu universitas yang berbasis pendidikan di daerah Malang. Teknik analisis data yang digunakan yaitu teknik analisis data interaktif. Hasil penelitian menunjukkan bahwa kesulitan disebabkan oleh faktor internal, seperti pemahaman materi, motivasi, dan keterbatasan kemampuan literasi bahasa Inggris, serta faktor eksternal, seperti dosen, konflik dalam kerja kelompok, dan suasana kelas yang tegang.
Plaque number board: visualizing the essence of exponents through simple proofs Hapsari, Agnesi Alifia; Darmawan, Puguh
International Journal of Mathematics and Sciences Education Vol. 3 No. 1 (2025): Ijmsed
Publisher : Nashir Al-Kutub Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59965/ijmsed.v3i1.169

Abstract

The exponential power rule was one of the materials studied at the high school level. Students tended to memorize it rather than understand it. This caused students to have difficulty in applying the concept of exponents when working on non-routine questions. The ability to prove the properties of exponents in a simple way was needed to improve students’ understanding, so a manipulative medium for the exponent power property called PLAKAT was created. This research aimed to examine the application of learning using the manipulative medium for the exponent power property known as PLAKAT. The research method used was qualitative with a case study approach. The instruments used to collect data included the manipulative media, video recording equipment, and observation notes. The subjects involved were practical students and audience students. The data collected consisted of video recordings and notes. The data were analyzed using interactive methods. The results of the research showed that this medium was useful for increasing students' understanding of the exponent power property. However, PLAKAT had a weakness: it did not have a rope, so it could not be hung, making its use less practical. This shortcoming served as a suggestion for teachers and students who intended to use this medium to prepare a more complete version to support smoother learning.
Co-Authors Puguh Darmawan