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All Journal Prosiding Seminar Nasional Pascasarjana Proceeding of International Conference on Science, Education, and Technology
Ratri Rahayu
Universitas Negeri Semarang
Education

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Pengembangan Disposisi Matematis melalui Konstruksi Pemecahan Masalah pada Pembelajaran Matematika Realistik Ratri Rahayu; Kartono Kartono; Dwijanto Dwijanto; Arief Agoestanto
Prosiding Seminar Nasional Pascasarjana Vol. 4 No. 1 (2021)
Publisher : Pascasarjana Universitas Negeri Semarang

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Abstract

Disposisi matematis memegang peranan penting dalam menunjang keberhasilan siswa untuk memecahkan masalah. Salah satu pembelajaran yang dapat menunjang pengembangan disposisi matematis dan konstruksi pemecahan masalah siswa yaitu pendekatan Pembelajaran Realistik Matematika Indonesia (PMRI). Melalui PMRI siswa dapat membangun konsep/prinsip matematika dengan kemampuannya sendiri melalui proses asimilasi dan akomodasi. Adapun tujuan penelitian ini adalah untuk menganalisis implementasi pendekatan PMRI dalam rangka pengembangan disposisi matematis dan konstruksi pemecahan masalah berbasis teori Piaget. Jenis penelitian ini yaitu penelitian kepustakaan dengan pendekatan kualitatif. Teknik pengumpulan data yang digunakan yaitu dokumentasi. Peneliti mengumpulkan informasi bersumber dari jurnal, prosiding, buku, dan literatur lainnya yang berisi mengenai teori dan data yang relevan. Teknik analisis data yang digunakan mengacu pada Miles dan Huberman yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa disposisi matematis dapat ditumbuhkan melalui tahapan PMRI antara lain: memahami masalah kontekstual, menyelesaikan masalah, membandingkan dan mendiskusikan jawaban, serta penarikan kesimpulan. Melalui penyajian masalah sehari-hari dapat membantu siswa dalam mengkonstruksi pengetahuan mereka secara lebih baik.
The Effectiveness of Accelerated Problem Based Learning With Dynamic Assessment in Achieving Problem-Solving Skills Ratri Rahayu; Kartono Kartono; Dwijanto Dwijanto; Arief Agoestanto
International Conference on Science, Education, and Technology Vol. 8 (2022)
Publisher : Universitas Negeri Semarang

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Abstract

This research aims to analyzed the effectiveness of Accelerated Problem Based Learning (A-PBL) with dynamic assessment on students' problem-solving skills. This quantitative research had 319 students from the eighth grade of junior high school. The researchers took the sample with a random sampling technique. The results were 32 students for the experimental group. These learners received the A-PBL model with dynamic assessment. The other 32 students for the control group received a direct instruction model. The research instruments were a problem-solving skill test. The data were analyzed by descriptive statistical analysis and then continued with hypothesis testing. The hypothesis tests were independent sample t-test, one-sample t-test, proportional test, and simple linear regression test. The results showed that the A-PBL model is effectively used to achieve problem solving skills with indicators: (1) the learners' mathematic problem-solving skills taught by A-PBL with dynamic assessment met 65 score; (2) the average of learners' mathematics problem-solving skills taught by the A-PBL model and dynamic assessment was higher than the problem-solving skills of learners taught by the direct learning model; and (3) the proportion of students who have completed A-PBL learning with dynamic assessment is more than the proportion of students who have been taught using the direct instruction model. Research contributes scientifically to the development of learning model syntax that can be used to improve problem solving.
Co-Authors Arief Agoestanto Dwijanto Dwijanto Kartono -