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All Journal Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) MASALIQ: Jurnal Pendidikan dan Sains Jurnal Tadris Matematika (JTMT) Journal Of Health Science Community
Luthfiani, Ulfa
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Religion Dentistry Education Health Professions Mathematics Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Analisis Kesalahan Siswa Kelas X Dalam Menyelesaikan Soal Pada Materi Fungsi Kuadrat Menurut Teori Kastolan Luthfiani, Ulfa; Saragih, Sehatta; Suanto, Elfis
Seminar Nasional Hasil Riset dan Pengabdian Vol. 5 (2023): Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) Ke 5 Tahun 2023
Publisher : LPPM Universitas PGRI Adi Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian siswa kelas X di SMA Negeri 1 Karimun bertujuan melakukan analisis pada kesalahan pengerjaan siswa mengenai soal fungsi kuadrat. Data metode deskriptif kualitatif dan instrumentnya adalah 3 soal uraian mengenai soal fungsi kuadrat. Data dikumpulkan dengan melakukan tes serta wawancara. Dari hasil data yang telah dianalisis, kesimpulannya adalah siswa melakukan kesalahan konsep, kesalahan procedural, dan kesalahan operasi dalam mengerjakan soal fungsi kuadrat, penyebabnya karena rendahnya kemampuan siswa dalam memahami dan menguasai konsep. Guru harus fokus pada materi yang disampaikan dan memotivasi siswa untuk belajar matematika. Guru juga dapat memakai metode belajar yang aktif dan kreatif kepada iswa agar siswa semakin seneng belajar matematika dan mampu menyelesaikan soal yang diberikan.
Tingkat Kecemasan Dengan Mekanisme Koping Pada Pasien Efusi Pleura Dengan Tindakan Evakuasi Cairan Pleura Di Ruang Pulmonary Center RSUD Dr. Iskak Tulungagung Luthfiani, Ulfa; Anggraini, Novita Ana
Journal of Health Science Community Vol. 1 No. 1 (2020): August
Publisher : Universitas STRADA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30994/jhsc.v1i1.4

Abstract

Kecemasan pada pasien efusi pleura disebabkan oleh spasme akibat penumpukan cairan di pleura. Untuk mengatasi kecemasan ini pasien harus beradaptasi dengan menggunakan mekanisme kopingnya. Tujuan penelitian ini adalah untuk mengetahui hubungan tingkat kecemasan dengan mekanisme koping pada pasien efusi pleura di Pulonary Center RSUD dr. Iskak Tulungagung.Desain penelitian ini adalah observasional analitik dengan pendekatan cross sectional dengan seluruh populasi pasien efusi pleura di ruang pulmonary center dr. Iskak Tulungagung yang berjumlah 31 responden. Sampelnya adalah seluruh populasi yaitu 31 responden dengan teknik pengambilan sampel secara total sampling. Data yang terkumpul diolah dengan uji statistik Spearman Rho dengan signifikansi α = 0,05.Hasil penelitian menunjukkan bahwa sebagian besar responden mengalami kecemasan sedang yaitu 16 responden (51,6%) sebagian besar responden mengalami mekanisme koping maladaptif yaitu 19 responden (61,3%).Hasil analisis uji Spearman Rho didapatkan p-value = 0,019 (<0,05) yang berarti menolak H0 dan menerima H1 sehingga ada hubungan tingkat kecemasan dengan mekanisme koping pada pasien efusi pleura dengan tindakan evakuasi cairan efusi pleura di Ruang Pulmonary Center dr. Iskak Tulungagung.Dari hasil penelitian ini dapat dibuktikan bahwa semakin ringan tingkat kecemasan seseorang maka mekanisme coping yang digunakan akan semakin adaptif. Begitu pula sebaliknya, jika kecemasan pasien meningkat maka mekanisme koping yang digunakan cenderung maladaptif
Development Of Learning Based Teaching Materials On Quadratic Function Materials To Improve Students' Mathematical Representation Skills Luthfiani, Ulfa; Saragih, Sehatta; Suanto, Elfis
JTMT: Journal Tadris Matematika Vol 6 No 2 (2025): Volume 6, Issue 2, Desember 2025
Publisher : Universitas Islam Ahmad Dahlan (UIAD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47435/jtmt.v6i2.4191

Abstract

This research aims to develop discovery learning-based teaching materials on quadratic functions to improve mathematical representation abilities of grade X students. The low mathematical representation ability of Indonesian students reflected in TIMSS 2015 results is the research background. Research and Development (R&D) methodology with a 4D model (Define, Design, Develop, Disseminate) was used to develop the learning product. Validation was conducted by three mathematics education experts, practicality testing through student response questionnaires, and effectiveness was measured using a Post-test Only Control Group design comparing experimental and control classes. The findings showed very high validity at 91.54%, practicality reached 79.31% in the practical category, and significant effectiveness demonstrated through average score increase from 73.27 to 83.20 (sig = 0.000 < 0.05). The Z proportion test yielded 1.8974 > 1.645, indicating more than 75% of students achieved the minimum mastery standard. This teaching material successfully facilitates mathematical representation skill development through structured discovery activities, although visual representation aspects need further optimization. The discovery learning approach effectively optimizes students' knowledge construction through meaningful learning experiences while overcoming conventional learning limitations in developing mathematical representation competencies
Pengaruh Model Pembelajaran Kooperatif Tipe STAD terhadap Keterampilan Kolaborasi Siswa Luthfiani, Ulfa; Afriani, Rini
MASALIQ Vol 6 No 3 (2026): MASALIQ: Jurnal Pendidikan dan Sains
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/masaliq.v6i3.10063

Abstract

Although the implementation of cooperative learning models in history learning has been widely studied, discussions that specifically analyze the effectiveness of the Student Teams Achievement Divisions (STAD) model in improving students’ collaboration skills still need to be strengthened. This study aims to analyze the effect of implementing the STAD-type cooperative learning model on students’ collaboration skills in history learning at SMA Negeri 1 Bandar. This study used a quantitative approach with a quasi-experimental design, involving 72 students selected through purposive sampling and divided into experimental and control classes. Data were collected through observation, questionnaires, and documentation, and were then analyzed using simple linear regression tests and t-tests. The results showed that the implementation of the STAD-type cooperative learning model had a positive and significant effect on improving students’ collaboration skills, as reflected in increased communication skills, group responsibility, active participation, and cooperation among students during the history learning process. These findings strengthen the relevance of cooperative learning in supporting the development of 21st-century skills, particularly collaboration skills in the context of history education. The conclusion of this study emphasizes that the STAD model can be used as an innovative student-centered learning strategy to create more active, interactive, and collaborative history learning. The implications of this study provide theoretical contributions to the development of cooperative learning literature and practical implications for teachers and educational institutions in optimizing the STAD model to improve students’ collaboration skills.
Co-Authors Afriani, Rini Elfis Suanto Novita Ana Anggraini Sehatta Saragih