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Hamidah Suryani Lukman
Universitas Muhammadiyah Sukabumi
Humanities Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

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Journal : JTAM (Jurnal Teori dan Aplikasi Matematika)

 1 
The Effect of GEMAS on Mathematical Problem-Solving and Critical-Thinking Abilities Lukman, Hamidah Suryani; Setiani, Ana
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 9, No 2 (2025): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v9i2.29659

Abstract

This research focuses on the development of gamification-based mathematics teaching materials specifically designed to improve the problem-solving and critical mathematical thinking skills of junior high school students in the form of GEMAS (Junior High School Mathematics Game) and to test the product based on its validity, practicality, and effectiveness aspects. The ADDIE MODEL is used in the research and development of GEMAS. Previous research articles have discussed the stages of product development, validity testing, and practicality, so the focus mof this article only discusses its effectiveness test. Thus, the stages of the ADDIE model used in this article are also limited to the last two stages, namely Implementation and Evaluation. The study was conducted at two junior high schools in Sukabumi using a one-sample pretest-posttest design. The sample was 256 students from 10 study groups using cluster random sampling techniques. Data were collected through the Krulik-Rudnick problem-solving ability test instrument, the FRISCO critical-thinking ability test, and student response sheets that met the criteria of being very valid and highly reliable. Data were analyzed using a paired two-sample t-test at a significance level of alpha 5% and descriptive analysis. The results of the study showed that GEMAS met the criteria for effectiveness. This can be seen from the overall range of values between the average pretest and posttest of problem-solving ability which reached 43.75 and critical thinking ability which reached 47.00, as well as the n-gain value of both mathematical problem-solving ability and mathematical critical thinking ability of junior high school students has met the moderate improvement category (46-51%). 
Co-Authors Achla Nabilla Miharjo Agistnie, Rheina Amalia, Khoirunnisaa Fadhilah Ana Setiani Ana Setiani Anggia Murni Anisa Rahmawati Annisa Enistoneisya Hermawan Aritsya Imswatama Aryanti Septiani Astri Sutisnawati Ayip Surodi Azis, Dikri Maulana Bahasa Indonesia, Bahasa Indonesia Dhea Andryos Yuntiaji Diana Oktaviani, Diana Dikri Maulana Azis Elnawati Eri Nurfadhilah Sari Farhan Mustaf Azizi Fathira Aprilia Az-zahra Febby Ramdani Febi Febriyani Febriyani, Febi Hasnaa Indar Nurazhaar Hastri Rosiyanti IDA RAHMAWATI Ida Rahmawati Iryani Dinar Dinar Ismah Ismah Juliana, Fani Kosasih, Fajar Hamzah Kurnia Mawar Kurniawan, Riqi Lia Milyawati Maria Ulfah Masyuda, Lida Merina Merina Merina, Merina Merina, Merina Mira Siti Nur’azizah Muhassanah, Nur’aini N. Alifa Maulida Nenden Mutiara Sari Nita Andriani Nita Widyati Ananda Novi Andri Nurcahyono Nur Agustiani Nur Agustiani Nur Agustiani Nur Agustiani Nur'azizah, Mira Siti Nuraini Muhassanah Nurhalisah, Ita Amalia Nurma Muharom Nurul Aeni Patmawati Prasetia, Astri Pujia Siti Balkist Purwati, Restu Intan Rahmita Nurul Muthmainnah Restu Intan Purwati Risa Rahma Safitri Rosinansis, Rineka Safitri, Dista Anggraeni Sani, Sumiati Setiani, Ana Setiani, Ana Setiani, Ana Siti Fitri Diaroh Sopiah, Imat Sri Mulyani Suningsih Suningsih Yanti Mulyanti Yanti Mulyanti Yanti Mulyanti, Yanti Yuntiaji, Dhea Andryos