This research intended to describe the mathematical representation of students in solving statistical problems based on the Krulik anf Rdunick steps. This research is a qualitative descriptive study. The subjects of this study were students of the second semester mathematic education study program. The procedure of subjects using purposive sampling techniques. Data collection techniques in this study were observation, interviews and documentation. Data validity used triangulation. Data analysis techniques using the Mile and Huberman step, namely data reduction, data presentations, drawing conclusions and verifyingconclusions. The results The results of this study are as follows: (1) subjects with high ability in the read and think and exploration and plan stages, using verbal and symbolic representations. The stage of select a strategy, using symbolic representation. The find and answer stage, uses symbolic and visual representations. In the reflect and extend step, the subject uses verbal representations. For students with moderate ability in the stage of read and think and explore and plan using verbal representation. The stage of finding an answer and select a strategy using verbal and symbolic representation. The reflect and extend stage of the subject uses symbolic representations. In students with low ability to read and think and explore and plan using verbal representation. Stage select a strategy subject using symbolic representation.
This research is a development research with the aim of obtaining a valid and feasible HOTS question instrument. The instrument for HOTS questions was developed for both high school and vocational high school levels. The research method used is research and development / known as R&D (research and development). The model used by Borg & Gall's R&D. which includes the stages: Preliminary Study, Product Development, and Product Testing. From the question instrument developed, it meets the valid criteria and is very valid in each category. In other words, the instrument for HOTS questions developed can be declared valid and usable.
Penelitian ini bertujuan untuk mengetahui pengaruh self efficacy terhadap kemampuan mengajar matematika dalam Program Pengalaman Lapangan (PPL), pengaruh prestasi microteaching berbantu zoom meeting terhadap kemampuan mengajar matematika dalam PPL, dan pengaruh self efficacy dan prestasi microteaching berbantu zoom meeting terhadap kemampuan mengajar matematika dalam PPL. Penelitian ini termasuk penelitian Quasi eksperimen dengan tipe one group posttest only design. Subjek yang digunakan adalah 17 mahasiswa semester VI jurusan pendidikan matematika di Universitas Peradaban. Teknik pengumpulan datanya adalah angket, dan observasi. Analisis data dalam penelitian ini adalah uji regresi sederhana dan uji regresi ganda menggunakan aplikasi SPSS. Hasil penelitian ini adalah terdapat pengaruh positif antara self efficacy terhadap kemampuan mengajar matematika dalam PPL, terdapat pengaruh positif antara prestasi microteaching berbantu zoom meeting terhadap kemampuan mengajar matematika dalam PPL, dan terdapat pengaruh positif antara self efficacy dan prestasi microteaching berbantu zoom meeting terhadap kemampuan mengajar matematika dalam PPL.
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