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Journal : Jurnal Pendidikan Matematika

Teacher's Specialized Content Knowledge on the Concept of Square: A Vignette Approach Mega Teguh Budiarto; Yusuf Fuad; Latief Sahidin
Jurnal Pendidikan Matematika Vol 15, No 1 (2021)
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jpm.15.1.11653.1-22

Abstract

In learning geometry, the discussion about the definition of quadrilateral is a material that is difficult and not easily taught by the teacher. This study aims to explore the teacher's specialized content knowledge about square. This is a descriptive-qualitative research. The process of selecting subjects begins with searching prospective subject data according to the level of the teacher through a portfolio of 82 teachers in South East of Sulawesi: (33 First Teachers, 33 Young Teachers, and 16 Intermediate Teachers). The research subjects consisted of three teachers, namely: First Teacher, Young Teacher dan Intermediate Teacher with score > 50. Data were taken using vignette. The results show that there is a difference when the teacher is asked to define a square with when given a definition of a square. First Teacher is accurate when given a square definition with the symmetry and diagonal axis attributes; the side attribute is not accurate in giving arguments to the square definition. Young Teacher is inaccurate when given the definition of a square with side and angle attributes; accurate with symmetry and diagonal axis attributes; but it is not accurate when given a square definition. Regarding attributes of side; Intermediate Teacher revealed that the side and angle attributes are inaccurate but accurate with the symmetry and diagonal axis attributes but do not appear / are not used when asked to define a square. Specialized content knowledge First Teacher is better because it has been able to reconstruct concepts from a square, but Young Teacher and Intermediate Teacher are still influenced by concept images and figural concepts.
Co-Authors A. Fuad Abd Al-Baqie AGUNG LUKITO Agung Lukito Agus Prasetyo Kurniawan Al-Baqie, A. Fuad Abd Amirah Amirah Anggietyas Damaningrum ANGGRIYANI RUDIN, MARIA Anis Farida Jamil Anis Fauziana Anis Fauziana ANNISA DWI KURNIAWATI Ariesta Kartika Sari Ariesta Kartika Sari Arwanto Arwanto Atik Wintarti Atik Wintarti, Atik Baehaqi Bakhrul Ulum Bongtiwon, Daisy Mae R. Bonyah, Ebenezer BUDI LESTARI, LULUK Dewi Safina Dhiajeng Wulandari DIAH KUSUMAWARDANI, HARNUM Dikey Putra Utama Dilla Dwi Cahyani Dwi Nikmatul Masrukha EKA DIA DARA, RADHIFA Erica Dian Pertiwi Fauziana, Anis Firdaus, Andi Mulawakkan Genata Vidya Wardani Hodiyanto, Hodiyanto I Ketut Budayasa Ika Kurniasari Ika Kurniasari Indah Prasetya Ningsih Ismail Ismail, Ismail Isnaindah Jasmine Pertiwi Jayanti Munthahana Kharisma Isrozia Kusumawardhany KHUSNAWIYATI, WAHYU Kim, Jeonghyeon Kistatuhu, Nurul Wahidatul Kukuh Widodo Kukuh Widodo Kusumawardhany, Kharisma Isrozia Latief Sahidin Latifah, Nadia Lestari, Dinar Dwi Putri Manuharawati Mardiyah, Umi Rif?atul Masduki Masriyah MASRIYAH Masriyah Mayang Dintarini MIFTAHUL FAUZI, MOHAMMAD Mochamad Fachrul Rozi Mohamad Gufron mokhammad aby hasan MUFIDAH, ITSNA Munthahana, Jayanti Nila Kartika Sari Nina Prihartiwi Novita Purnamasari Supahmi NUR FITRIANA, EKA Nurul Nofi Aini Pardosi, Romario Petrus Pradnyo Wijayanti Rachmaniah Mirza Hariastuti Raden Sulaiman Raden Sulaiman RADEN SULAIMAN Rahaju, Endah Budi RAHMITA, FIKI Ratih Puspasari Renova Mirojul Lail Riky Prasetia Wijaya Rini Setianingsih Rini Setianingsih Rini Setyaningsih Robbi Nur Mulyo roby zulianto Rooselyna Ekawati RUDIANTO ARTIONO, RUDIANTO Sahidin, Latief Sari, Nila Kartika Seftyana Ayu Susanti Setianingsih, Rini Setyo Hartanto Siolimbona, Dedi Rahman Sisva Lestari Mangiri Siti Khabibah Siti Khabibah Sofro, A'yunin Sriantini, Ari St. Suwarsono SULTHON AFIFUDDIN, AHMAD Susanah SUSANAH Susanti, Gemi Susanti, Seftyana Ayu Suwarsono Suwarsono SYAMSU ALAM Syamsu Alam Tarida, Luthfiana Tatag Yuli Eko Siswono Tonra, Wilda Syam Utama, Dikey Putra WAHIDATUL HASANAH, NUR WIHDATUN NAFIIN, MUHAMMAD Winda Putri Ayu Kusuma Wurdani Winda Syam Tonra Wiryanto Wiryanto Wiryanto Wiryanto Wiwik Handayani Yusuf Fuad YUSUF FUAD