Year: 2026
Type: article
Study design: Clinical Trial
Abstract: Low mathematics learning achievement among students is frequently attributed to abstract instructional practices that lack contextual relevance. This study aims to analyze the implementation of Realistic Mathematics Education (RME), describe students' learning achievement, and examine the effect of RME on seventh-grade students' achievement in algebraic addition and subtraction operations at SMPK St. Agustinus Adisucipto Kupang. A quantitative quasi-experimental approach utilizing a one-group pretest-posttest design was employed. The study population encompassed all seventh-grade students, with class VIIE chosen as the research sample via simple random sampling. Research instruments comprised teacher activity observation sheets and subjective achievement tests, which were statistically examined using a paired samples t-test. The findings revealed that the implementation of RME syntax was categorized as good, reaching an achievement indicator of 87.5%, while students' posttest learning achievement attained an average score of 82.37 in the very good category. Inferential statistical testing confirmed a significant difference between pretest and posttest outcomes (t=29.968>t_"table" =2.040;p=0.001<0.05). Consequently, Realistic Mathematics Education exerts a statistically significant positive effect on students' mathematics learning achievement in algebraic operations. ABSTRAK Rendahnya prestasi belajar matematika siswa sering kali bersumber dari proses pembelajaran yang kurang kontekstual dan cenderung bersifat abstrak. Penelitian ini bertujuan untuk menganalisis keterlaksanaan Pembelajaran Matematika Realistik (PMR), mendeskripsikan capaian prestasi belajar siswa, serta menguji pengaruh penerapan PMR terhadap prestasi belajar materi operasi penjumlahan dan pengurangan bentuk aljabar pada siswa kelas VII SMPK St. Agustinus Adisucipto Kupang. Metode penelitian yang digunakan adalah kuantitatif berdesain eksperimen semu (quasi-experiment) dengan rancangan one-group pretest-posttest design. Populasi penelitian mencakup seluruh siswa kelas VII, dengan sampel kelas VIIE yang dipilih melalui teknik penarikan sampel acak sederhana (simple random sampling). Pengumpulan data menggunakan lembar observasi keterlaksanaan pembelajaran dan tes prestasi belajar berbentuk uraian subjektif yang dianalisis menggunakan uji paired samples t-test. Hasil penelitian menunjukkan bahwa keterlaksanaan sintaks PMR berada pada kategori baik dengan persentase ketercapaian 87,5%, dan rata-rata prestasi belajar siswa setelah perlakuan mencapai 82,37 pada kriteria sangat baik. Uji inferensial membuktikan adanya perbedaan yang signifikan antara nilai sebelum dan sesudah perlakuan (t=29,968>t_"tabel" =2,040;p=0,001<0,05). Dengan demikian, Pembelajaran Matematika Realistik berpengaruh signifikan terhadap peningkatan prestasi belajar matematika siswa pada materi operasi aljabar.
Authors: Elisabeth Anania Sea, Samuel Igo Leton
Institution: Universitas Katolik Widya Mandira
Language: English
Subfield: Applied Mathematics
Field: Mathematics
Domain: Physical Sciences
SDG: Quality education
Open Access status: hybrid
OpenAlex ID: W7225105776