Technological pedagogical content knowledge (TPACK) is urgently needed by science teachers in schools in the 21st century. This study aims to describe the effectiveness of teachers in applying the TPACK model. Regarding effectiveness, there is a statistically significant increase in alpha 0.05, which is the average score of teacher skills for classes A and B; the average normalised gain (n-gain) score for minimum teacher skills is in the medium category; there is no statistically significant difference in the alpha 0.05 average score of n-gain skills of teachers of classes A and B; the minimum effect size is in the medium category. The research sample consisted of 70 junior high school natural science teachers, each class with 35 teachers. The collected data were analysed using paired sample t-test, n-gain calculation and effect size. The results showed that the increase in teacher skill scores was significant; the average n-gain score of teachers’ skills was in the medium category; the average score of the average n-gain of teachers’ skills was not different between classes A and B; and the effect size is in the moderate effect category. The conclusion of this study is that teacher professional education programme activities are effective in implementing the TPACK model. The TPACK model can improve the skills of teachers’ higher-order thinking skills in teaching science in schools. Keywords: Science, teacher, technological, pedagogical, content knowledge

This study aims to analyze the students’ numerical literacy ability in junior high schools based on their status (accreditation and state/non-state schools). This study used the descriptive quantitative method. The participants were 150 students randomly selected from 2 state junior high schools (SMPN) based on the accreditation levels (A B) and 1 non-state school (SMP). The instrument used was the modified result of the Numerical Literacy Ability test developed by the Center for Assessment and Learning (Pusmenjar) of the Ministry of Education and Culture. The collected data were analyzed using descriptive statistics. The research results indicated that: (1) the student’s numerical literacy skills in junior high schools were low for all domains and tended to be very low in geometry; (2) at the L1 level, students did not experience difficulties, but other levels did, especially L3; and (3) school status had no significant effect on the students' numerical literacy skills.Penelitian ini bertujuan untuk menganalisis kemampuan literasi numerasi siswa di SMP berdasarkan statusnya (akreditasi dan sekolah negeri/non negeri). Penelitian ini menggunakan metode kuantitatif descriptive. Peserta tersebut merupakan 150 siswa yang dipilih secara acak dari 2 SMPN Negeri (SMPN) berdasarkan jenjang akreditasi (A/B) dan 1 sekolah non negeri (SMP). Instrumen yang digunakan merupakan hasil modifikasi dari uji Kemampuan Literasi Numerasi yang dikembangkan oleh Pusat Pengkajian dan Pembelajaran (Pusmenjar) Kementerian Pendidikan dan Kebudayaan. Data yang dikumpulkan dianalisis menggunakan statistik deskriptif. Hasil penelitian menunjukkan bahwa: (1) kemampuan literasi numerasi siswa di sekolah menengah pertama rendah untuk semua domain dan cenderung sangat rendah dalam geometri; (2) pada jenjang L1, siswa tidak mengalami kesulitan, tetapi jenjang lain mengalami kesulitan, terutama L3; dan (3) status sekolah tidak berpengaruh signifikan terhadap kemampuan literasi numerik siswa.

The purpose of this study was to describe the creative thinking process of students' field-independent cognitive style in solving mathematical problems related to the circumference of a flat shape. The method used was descriptive qualitative. The subjects of this study were class VIII students who had a field-independent cognitive style based on the Group Embedded Figure Test (GEFT). Data were obtained through tests, documentation, observation, and interviews. Data analysis was carried out using four creative thinking processes developed by Graham Walla, namely preparation, incubation, illumination, and verification. The results indicated that students could understand the problem well, tend to be quiet to find solutions, could design solutions that would be done by choosing ideas to be solved by modifying the knowledge they already have and applying designed ideas to solve problems. Therefore, students seemed to understand mathematical operations related to the circumference of plat shapes. Abstrak: Tujuan penelitian ini adalah untuk menyajikan proses berpikir kreatif gaya kognitif field-Independent siswa dalam memecahkan masalah matematika berkaitan dengan keliling bangun datar. Metode yang digunakan adalah kualitatif deskriptif. Subjek penelitian ini merupakan siswa kelas VIII yang memiliki gaya kognitif field-independent berdasarkan hasil tes Group Embedded Figure Test (GEFT). Data diperoleh melalui tes, dokumentasi, observasi, dan wawancara. Analysis data dilakukan menggunakan empat proses berpikir kreatif yang dikembangkan Graham Walla, yaitu persiapan, inkubasi, iluminasi, dan verifikasi. Hasil penelitian menunjukkan bahwa Siswa dapat memahami masalah dengan baik, cenderung pendiam untuk mencari solusi, dapat merancang solusi yang akan dilakukan dengan memilih ide untuk diselesaikan dengan memodifikasi pengetahuan yang telah dimiliki, dan menerapkan ide yang dirancang untuk menyelesaikan masalah. Oleh karena itu, siswa tampak memahami operasi matematika yang berkaitan dengan keliling bangun datar.