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All Journal JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Pendidikan Sains Jurnal Pengajaran MIPA Jurnal Infinity AKSIOMA: Jurnal Program Studi Pendidikan Matematika JIPM (Jurnal Ilmiah Pendidikan Matematika) EDU-MAT: Jurnal Pendidikan Matematika Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan Jurnal Gantang Al-Jabar : Jurnal Pendidikan Matematika Jurnal Kajian Pembelajaran Matematika JMPM: Jurnal Matematika dan Pendidikan Matematika JOHME: Journal of Holistic Mathematics Education Premiere Educandum: Jurnal Pendidikan Dasar dan Pembelajaran Indiktika : Jurnal Inovasi Pendidikan Matematika Jurnal Cendekia : Jurnal Pendidikan Matematika JTP - Jurnal Teknologi Pendidikan Jurnal Pendidikan Edutama International Journal of Insights for Mathematics Teaching (IJOIMT) Research in Social Sciences and Technology International Journal of Humanities and Innovation (IJHI) Mosharafa: Jurnal Pendidikan Matematika Journal for Lesson and Learning Studies MATHEMATIC EDUCATION AND APLICATION JOURNAL (META) Pancaran Pendidikan Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Jurnal MIPA dan Pembelajarannya International Journal of Trends in Mathematics Education Research (IJTMER) Journal of Innovation and Teacher Professionalism Jurnal Infinity Jurnal Pendidikan MIPA Journal on Mathematics Education
Erry Hidayanto
Universitas Negeri Malang
Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : Jurnal Gantang

 1 
Kemampuan Berpikir Kritis Siswa SMP dalam Menyelesaikan Masalah Geometri Wulandari, Monika Retno; Hidayanto, Erry; Kusumasari, Vita
Jurnal Gantang Vol 10 No 1 (2025): Jurnal Gantang
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jg.v10i1.7197

Abstract

This study aims to describe the critical thinking skills of junior high school (SMP) students in solving geometry problems. A descriptive qualitative approach was used, involving six eighth-grade students selected through purposive sampling. The subjects consisted of two students from each category of mathematical ability: high (  & ), medium (  & ), and low (  & ). The six students were selected based on their performance in the written test and their verbal communication skills, as observed during the pre-research phase, to ensure a more accurate representation of the population. Data were collected through written tests consisting of two essay questions and semi-structured interview guidelines developed based on Facione’s critical thinking indicators: interpretation, analysis, evaluation, and inference. The research data collected were written test results and interviews, which were then analyzed based on critical thinking indicators. The results showed that interpretation was the indicator most easily achieved by all subjects, analysis was optimally achieved only by students with high mathematical ability, while evaluation and inference were the most difficult indicators to fulfill. The study concludes that students’ critical thinking skills in solving geometry problems are generally low, primarily because of insufficient mastery of the underlying material.
Co-Authors 'Azizah, Dewi Nur Abdur Rahman As’ari Afin Nur Latifa Agus Alamsyah Agus Yulianto Agus Yulianto Agustin, Nana Maulidah Aldino, Fals Ana Cholila Anggraini Eka Pramestasari Annesa Eka Norman Anton Budi Jatmiko Arini, Kartika Ayu Dwi Ariza Husniyatul Ummah Arwan Mhd. Said Assegaff, Muhamad Farid Aynin Mashfufah Aziz Rizky Muhdiyanto Budiarto, Darum Cholis Sa’dijah Christi Matitaputty Darum Budiarto Dian Ratna Sari Dwi Aldi Hidayatulloh Dwi Cahyowati, Ety Tedjo Dwi Listyorini Dwi Susanti Dwiyana Dwiyana Edy Bambang Irawan Eko Prasetyo Elis Dwi Wulandari Ety Tedjo Dwi Cahyowati Ewan Gunawan Fadhil Zil Ikram Faiqatul ‘Athiyah Fals Aldino Faradina, Erta Fatmianeri, Yulia Fauzan, Hakmi Rais Gestiani, Anggun Handayaningsih, Rohyatun Henny Rismawatie Yusmarina Heri Prianto Hery Susanto Hidayanto, Sisworo I Ketut Suada I Made Sulandra I Nengah Parta Ikhtiar, Muhammad Awwalul Indayani, Nunik Intan Mahyastuti Khoerul Umam Khomsatun Ni'mah Laily Wijayanti Utami Lely Purnawati Lisrahmat, Mimin Nazura Makbul Muksar Mariana, Erna Maskanur Rezky Mirza Amelia Oktaviani Mohammad Archi Maulyda Mohammad Dadan Sundawan Muhammad Noor Kholid Muhammad Rizaldi Munika, Risa Dewi Nana Maulidah Agustin Nunik Indayani Nur Indah Permata Sari Nuratiqoh, Nuratiqoh Permadi, Hendro Puguh Darmawan Puji Astuti Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Purwosetiyono, Fransiskus Xaverius Didik Putri Raznia Safira Putri, Intan Faraminda Qohar, Abd. Rachmalia Vinda Kusuma Refni Adesia Pradiarti Risna Zulfa Musriroh Rohmah, Riska Nur Rosimanidar Rosimanidar Rosimanidar Rosyidah, Ana Siti Rustanto Rahardi Saleh, Sitti Fithriani Sandie Sari, Nur Indha Permata SATRIYAS ILYAS Sisworo Siti Nurjanah Sitti Fithriani Saleh Subanji Subanji Subanji, S Sudirman Sudirman Sudirman Sudirman Sukoriyanto Susiswo Swasono Rahardjo Tasni, Nurfaida Taufiq Hidayanto Tjang Daniel Chandra Toto Nusantara Umi Fitria Ayu Ummah, Ariza Husniyatul Utami, Laily Wijayanti Uun Hariyanti Vita Kusumasari Wildan Hakim Wulandari, Monika Retno Yayon Adi Galung Sastria Yulianto, Sisworo Yundari, Yundari