Article Per Year (5 Year)
p-Index From 2021 - 2026
0.562
P-Index
This Author published in this journals
All Journal PHI: Jurnal Pendidikan Matematika FARABI: Jurnal Matematika dan Pendidikan Matematika
Jomar, Guido Stefano
Unknown Affiliation
Computer Science & IT Decision Sciences, Operations Research & Management Mathematics

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
ANALISIS KEMAMPUAN SISWA DALAM MENYELESAIKAN SOAL CERITA MATEMATIKA BERBASIS HOTS PADA MATERI KESEBANGUNAN Jomar, Guido Stefano; Mau, Elfrida Olo; Tnesi, Stiven Aloysius; Dosinaeng, Wilfridus Beda Nuba
PHI: Jurnal Pendidikan Matematika Vol 9, No 2 (2025): EDISI OKTOBER, 2025
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/phi.v9i2.561

Abstract

Penelitian ini dilatarbelakangi oleh rendahnya kemampuan siswa dalam menyelesaikan soal cerita matematika berbasis Higher Order Thinking Skills (HOTS), khususnya pada materi kesebangunan. Tujuan penelitian ini adalah untuk menganalisis kemampuan siswa dalam menyelesaikan soal cerita berbasis HOTS serta mengidentifikasi kendala yang dihadapi. Penelitian ini menggunakan pendekatan kualitatif deskriptif dengan melibatkan dua siswa kelas VII-D SMP Negeri 10 Kupang yang dipilih secara purposive dan diberi kode SB dan SK. Subjek SB memiliki karakter terbuka dan komunikatif dalam menjelaskan proses berpikir, sedangkan SK bersikap hati-hati dan konsisten selama pembelajaran. Data dikumpulkan melalui tes tertulis, wawancara mendalam, observasi, dan dokumentasi, kemudian dianalisis menggunakan model Miles dan Huberman yang meliputi reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa kedua siswa mampu menuliskan informasi yang diketahui dan ditanyakan, serta menjawab soal akhir. Namun, SB belum mampu membangun dan menyelesaikan model matematika dengan benar, sedangkan SK telah mencoba membangun model tetapi masih melakukan kesalahan prosedur. Disarankan agar guru membimbing siswa dalam membangun model matematika yang tepat dan memberikan latihan soal kontekstual berbasis HOTS secara bertahap dan berkelanjutan untuk meningkatkan kemampuan berpikir tingkat tinggi siswa 
IDENTIFIKASI KEBUTUHAN DAN DESAIN MEDIA WORDWALL INTERAKTIF UNTUK MATERI KESEBANGUNAN DI SMP KELAS IX Tnesi, Stiven Aloysius; Mau, Elfrida Olo; Jomar, Guido Stefano; Lakapu, Meryani; Jagom, Yohanes Ovaritus
PHI: Jurnal Pendidikan Matematika Vol 9, No 2 (2025): EDISI OKTOBER, 2025
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/phi.v9i2.541

Abstract

This study aims to analyze the needs and design Wordwall-based interactive learning media on sereviation materials for junior high school students in grade IX. This research is the initial part of development research (R&D) with the IDDIE model which is focused on the Identify and Design stages. The analysis stage was carried out through classroom observation and interviews with teachers, which showed that students had difficulty in understanding the concept of awakening due to its abstract nature and lack of interesting learning media. Based on the results of the analysis, an interactive learning media in the form of a Wordwall quiz was designed with a variety of questions and visuals that suit the characteristics of the students. The design includes mapping basic competencies, material preparation, and visual and interactive media design. The results of the design stage result in an initial prototype of the media that is ready to be validated at the next stage of development. This media is expected to be an innovative solution in supporting contextual and fun mathematics learning
Comparison of Mathematics Learning Outcomes of Seventh Grade Junior High School Students between DL and PBL Models based on Midterm Test Scores Mau, Elfrida Olo; Tnesi, Stiven Aloysius; Jomar, Guido Stefano; Lakapu, Meryani
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1195

Abstract

This study aims to compare the effectiveness of the Discovery Learning (DL) and Problem-Based Learning (PBL) models on the mathematics learning outcomes of seventh-grade junior high school students, as measured by midterm exam scores. The background of this study is based on the low international achievement of Indonesian students in mathematics and the dominance of conventional approaches in the learning process. The method used is a quantitative comparative approach with a quasi-experimental design. The sample consists of two classes, each receiving either the DL or PBL model. Data were collected through documentation of MTE scores and analyzed using normality, homogeneity, and independent two-sample t-tests. The analysis results showed that both data sets were normally distributed and homogeneous. The t-test yielded a significance value of 0.823 (p > 0.05), indicating no significant difference in mathematics learning outcomes between students taught using the DL model and those taught using the PBL model. The effect size calculation (Cohen’s d = 0.18) indicated a very small effect. These findings indicate that the effectiveness of the two models is relatively balanced, and learning success is more influenced by non-instructional factors such as learning style and student motivation. Therefore, teachers are advised to choose a learning model that suits the characteristics of their students. This study suggests further research with a broader scope and a mixed-methods approach to gain a more comprehensive understanding. These results are important as a reference for selecting contextual learning strategies.
Co-Authors Mau, Elfrida Olo Meryani Lakapu Tnesi, Stiven Aloysius Wilfridus Beda Nuba Dosinaeng Yohanes Ovaritus Jagom