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Tri Dyah Prastiti
Universitas Terbuka
Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : Journal of Didactic Mathematics

 1 
Enhancing critical thinking skills through GeoGebra-based learning media in geometry transformation lessons for grade 11 students Adiguna, Kukuh Arya; Sunardi, Sunardi; Prastiti, Tri Dyah
Journal of Didactic Mathematics Vol 6, No 1 (2025): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v6i1.2588

Abstract

This study aims to develop and test the effectiveness of GeoGebra-based mathematics learning media on the critical thinking skills of 11th-grade high school students in the topic of geometric transformations. The research employed the ADDIE development model, consisting of five stages: analysis, design, development, implementation, and evaluation. During the analysis stage, interviews and pre-tests were conducted to identify students' needs and assess their initial abilities. The design stage involved creating GeoGebra-based learning media, developing assessment instruments, and designing lesson plans (RPP) using the PMRI model. In the development stage, the learning media were validated by media and content experts and tested on students of class XI MIPA 3 at SMA Negeri 1 Bangorejo. The implementation stage consisted of two sessions for teaching and testing. The evaluation stage included analyzing pre-test and post-test results using N-gain tests, normality tests, homogeneity tests, and paired sample t-tests. The results showed that the GeoGebra-based learning media achieved an excellent level of validity, with media validity at 95% and content validity at 85%. Furthermore, the media were rated as highly practical by students, with an average questionnaire score of 85%. The N-gain test indicated a "moderately effective" category with an average score of 56%. The paired sample t-test yielded a significance value of 0.000, demonstrating a significant improvement in students' critical thinking skills after using the media. Thus, it can be concluded that GeoGebra-based mathematics learning media are valid, practical, effective, and positively impact students' critical thinking skills in geometric transformations.
Co-Authors Adiguna, Kukuh Arya Agustina Indriyati Aldyon Restu Azkarahman Ali Rohman Anis Shobikhah Anjar Putro Utomo Baehaqi Barokah Widuroyekti Budi Prastowo , Srihandono Budi Utomo Budi Utomo D. Dafik Danang Hariyanto Dian Mayasari Dian Mayasari Dina Thaib Dwi Sambada Dwikoranto Edi Nuryanto Endang Wahyuningrum Estu Puji Handayani Happy Karlina Marjo Hariyanto, Danang Herkun Santoso Ikha Dewi Dyah Gayatri Indriyati, Agustina Jackson P Mairing Jackson Pasini Mairing Jackson Pasini Mairing Jackson Pasini Mairing, Jackson Pasini Mairing, Jackson Pasini Kartika Dwi Anggraeni Kewa, Agussalim Bebe Lilis Endang Rahaju M. Sukarno M. Ulul Albab Marwati, Iis Masnia, Luluk Masniyah Mery Noviyanti Mintasih Indriayu Mintasih Indriayu Mintasih Indriayu, Mintasih MUCHSINAN, KUN Muhammad Alif Syibli, Muhammad Alif Novianti, Idha Nurhayati, Emy Nuryanto, Edi Oktaviana, Dwi Livia Paillin, Bongga Pismia Sylvi Purwanti PURWANTI PURWANTI Retno Winarni Retno Winarni Retno Winarni S Sukidin Sembiring, Gorky Sendi Ramdhani Shaf, Sapyuddin Siti Aminah Siti Subuh Hemi Sri Tresnaningsih Sri Tresnaningsih Sri Tresnaningsih Sudilah Sudilah Sudilah, Sudilah Sukarno Sulistiyono Sulistiyono Sunardi Sunardi Sunardi Sunardi Sunardi Sunardi, Sunardi Suparti Supeno Suratno Suratno Tatag Eko Yuli Siswono Tatag Yuli Eko Siswono Titin Agustin Ulul Azmi Ulul Azmi Usman, Moh. Uzer Uswatun Hasanah Wiryanto Wiryanto Wiryanto Wiryanto Wiwik Andriani Wiwik Andriani Yumiati Yuniati, Yesi