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All Journal Cetta: Jurnal Ilmu Pendidikan Journal of Instructional Mathematics
Yunianingsih, Elih
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Education Mathematics

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Mengembangkan Kemampuan Berpikir Kritis Matematis Siswa Kelas V Sekolah Dasar Menggunakan Pendekatan Realistic Mathematic Education (RME) dan Visualisasi Spasial Yunianingsih, Elih; Meiliasari, Meiliasari; Jaya, Indra
Cetta: Jurnal Ilmu Pendidikan Vol 7 No 3 (2024)
Publisher : Jayapangus Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37329/cetta.v7i3.3419

Abstract

The basis for this research was the low mathematical critical thinking skills among fifth-grade students of SDN Kubang 02. The objective was to develop their mathematical critical thinking skills using the Realistic Mathematics Education (RME) approach and spatial visualization. This research is a classroom action research (PTK) with Kemmis and McTaggart model consisting of three cycles. Data collection was taken from observation and test data, while data analysis used qualitative and quantitative comparative descriptive methods by comparing data results from each cycle. The researcher's findings are that using the RME approach and spatial visualization in the mathematics learning process can develop students' mathematical critical thinking skills. This can be seen from acquiring mathematical critical thinking ability test results that have increased each cycle. In the pre-cycle students who obtained a test score ≥ 65 only reached 9 students or 18%, in cycle I experienced a development of 24 students or 49%, in cycle II experienced a development to 31 students or 63%, in cycle III continued to experience development until it reached 40 students or reached a percentage of 82%. Development can also be seen from the average value of students' mathematical critical thinking skills which increased from 50 in pre-cycle conditions, to 61 in cycle I, in cycle II it increased to 69, and in cycle III it increased again to 73. Based on the data obtained, it can be concluded that the use of the RME approach and spatial visualization is effective in developing the mathematical critical thinking skills of grade V students at SDN Kubang 02.
Influence a Realistic Mathematics Education Approach and Motivation on Students' Mathematical Reasoning Ability Purnamatati, A. M. Mega; Usman, Herlina; Yunianingsih, Elih
Journal of Instructional Mathematics Vol. 4 No. 1 (2023): Mathematical Learning: Strategies, Factors, and Challenges
Publisher : Pendidikan Matematika STKIP Kusuma Negara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37640/jim.v4i1.1618

Abstract

The purpose of the research was to provide knowledge of the effect of the Realistic Mathematics Education (RME) approach and motivation on students' mathematical reasoning abilities. This quasi-experimental study employed a pretest-posttest control group design, focusing on fifth-grade students at SDN Lulut 05, Klapanunggal District. Class VA was selected as the experimental group, while class VB served as the control group using purposive sampling. Data analysis involved the N-gain formula and t-test. The results shown: (1) There is a difference in the increase in students' mathematical reasoning ability after being given the RME approach indicated by the N-gain value of 55.5 in the medium category and for the experimental class 36.8 in the low category, then the control class in the t-test (independent) so that the Sig value is obtained. 0.001<0.005, as for deciding in the independent sample t-test. It is concluded that there is a significant difference between the average score mathematical reasoning ability by students treated with the RME approach and the Conventional approach. (2) There is an influence of the RME approach on students' mathematical reasoning abilities with an effect size score of 1.44 which is in the high category.
Co-Authors Meiliasari Purnamatati, A. M. Mega RR. Ella Evrita Hestiandari Usman, Herlina