Proses berpikir kritis dan kesalahan yang dilakukan oleh peserta didik berbeda-beda, hal tersebut dipengaruhi oleh kepribadian yang dimiliki setiap individu. Metode penelitian yang digunakan adalah penelitian deskriptif kualitatif. Subjek penelitian terdiri dari empat subjek dengan tipe kepribadian yang berbeda di antaranya dua subjek dengan kepribadian dominance dan dua subjek dengan kepribadian influence. Analisis data yang digunakan terdiri dari reduksi data, penyajian data, dan menarik kesimpulan. Hasil penelitian menunjukkan bahwa: 1) Peserta didik dengan kepribadian dominance salah satun subjeknya belum memenuhi semua indikator tahapan proses berpikir kritis yaitu pada tahap klarifikasi, tahap asesmen, tahap inferensi, sedangkan pada tahap strategi kedua subjek belum memenuhi indikator proses berpikir kritis. Selain itu, pada saat memecahkan masalah peserta didik dominance melakukan kesalahan di antaranya kesalahan memahami masalah, kesalahan transformasi, kesalahan keterampilan proses, dan kesalahan penulisan jawaban. 2) Peserta didik dengan kepribadian influence memenuhi semua indikator proses berpikir kritis, namun pada saat memecahkan masalah peserta didik influence melakukan kesalahan di antaranya kesalahan keterampilan proses dan kesalahan penulisan jawaban. Jadi, diantara kedua kepribadian tersebut yang melalui semua tahapan proses berpikir kritis dan melakukan sedikit kesalahan sebesar 33,3 % dari tahapan yang seharusnya dalam memecahkan masalah yaitu peserta didik dengan kepribadian influence.

The learning process has changed drastically from the face-to-face or classroom method to the one with technology utilization. One of the goals of mathematics education at school is to help students become smart citizens, namely, who can make decisions based on their needs, not others’ encouragement. Within the literature of motivation, there is a theory known as self-determination. The teachers’ efforts to develop students’ self-determination are reflected in those teachers’ capabilities in three ways: mastery of content, pedagogy, and technology, known as the TPACK. Mastery of both self-determination and TPACK is highly essential. This article discusses the instruments measuring both of them. In this study, we first arranged statements that correspond to both abilities’ indicators. Subsequently, we tested the legibility and performed the face validity and content validity by the experts. The methodology used in this study is a quantitative approach. Data were descriptively and quantitatively analyzed with the help of IBM SPSS software version 21. The results indicate that several statements need to be revised. However, the instruments have met both face validity and content validity. This result is also supported by the evidence of a high-reliability value and validity score. The instruments in this study, therefore, can be developed in further research.

No abstract

The aim of this study is to look at students' attitudes towards Geometry learning through the PACE model assisted by GeoGebra in one of junior high school in Cimahi City. The method used in this study is descriptive qualitative with a one-shoot case study design. After students taught during Geometry learning, namely by using the PACE model assisted by GeoGebra, at the end of the learning students are given a Likert model attitude scale questionnaire containing 21 statements with four choices. The results showed that students' attitudes towards the five indicators measured all showed positive attitudes. The attitude shown by the students' answers to the proposed statements shows the positive attitude of students towards interest, seriousness, and pleasure during Geometry learning through the GeoGebra-assisted PACE model.

This research is based on the results of the evaluation of the last ten years related to the development of studies in the Mathematics Education Master Program, Tanjungpura University, through a partnership model to develop and implement national and international comparative studies on mathematics teacher education. The aims are to describe the methodology used in the national level study of teacher education through the Teacher Professional Education Program or Pendidikan Profesi Guru (PPG)- Teacher Education and Development of Studies in Mathematics and share key findings related to mathematics preparation for future teachers. The research applied a quantitative approach with cross-sectional survey method with students of the master program of mathematics education class of 2019/2022 and 2020/2021. The results of the study show that future teacher performance: (1) has less opportunity to learn than high achievers in geometry, functions, calculus, and groups with mastery of linear algebra, number theory, analytic geometry, introduction to probability, and statistics and (2) has less opportunity for those who study school mathematics in data representation, calculus compared to linear algebra, analytic geometry, introduction to calculus, calculus, probability, and statistics. Thus, it can be concluded that attention and emphasis are needed on the type and depth of learning materials given to future teachers who continue their studies at the master's level. This pattern represents an extension to better future secondary school teachers.