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All Journal Numeracy : Jurnal Ilmiah Pendidikan Matematika Didaktik : Jurnal Ilmiah PGSD STKIP Subang Dimensi Matematika : Jurnal Pendidikan dan Pembelajaran Matematika
Sofiyan
Universitas Samudra
Education Mathematics

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TEORITIK TENTANG BERPIKIR REFLEKTIF SISWA DALAM PENGAJUAN MASALAH MATEMATIS Anwar; Sofiyan
Jurnal Numeracy Vol 5 No 1 (2018)
Publisher : Program Studi Pendidikan Matematika, Universitas Bina Bangsa Getsempena

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.349 KB) | DOI: 10.46244/numeracy.v5i1.330

Abstract

One of the higher order thinking skills is reflective thinking. The ability to think was needed in the learning of mathematics, so that students are able to understand the mathematical concepts of them learn and be able to use these concepts correctly, one of which is when students have to find solutions from various problems of mathematics. In addition, one of the other potentials that students have to study and develop is the ability of problem prossing, because the ability of problem possing not only train students reasoning, but also positively affect the students ability in propossing and solving of mathematical problems. Abstrak Salah satu kemampuan berpikir tingkat tinggi adalah berpikir reflektif. Kemampuan berpikir sangat dibutuhkan dalam pembelajaran matematika, agar siswa mampu memahami konsep-konsep matematika yang mereka pelajari serta mampu menggunakan konsep-konsep tersebut dengan tepat, salah satunya adalah ketika siswa harus mencari solusi dari berbagai permasalahan matematika. Selain itu, salah satu potensi lain yang dimiliki siswa perlu dikaji dan dikembangkan adalah kemampuan pengajuan masalah, karena kemampuan pengajuan masalah tidak hanya melatih penalaran siswa tetapi juga berpengaruh positif terhadap kemampuan siswa dalam mengajukan dan memecahkan masalah matematis. Kata kunci: Berpikir reflektif, masalah matematis, pengajuan massalah
IMPLEMENTASI PEMBELAJARAN BERBASIS ENOMATEMATIKA UNTUK MENINGKATKAN KEMAMPUAN KONEKSI MATEMATIS SISWA KELAS VII SMP Tasya I; Sofiyan
Jurnal Dimensi Matematika Vol 4 No 02 (2021): JURNAL DIMENSI MATEMATIKA
Publisher : Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jdm.v4i02.4758

Abstract

Penelitian ini bertujuan untuk menganalisis apakah terdapat peningkatan kemampuan koneksi matematis siswa kelas VII-1 SMP Negeri 3 Darul Aman pada materi aritmetika sosial yang diajarkan dengan menggunakan pembelajaran berbasis etnomatematika. Metode yang digunakan dalam penelitian ini adalah penelitian kuantitatif dengan jenis penelitian eksperimen satu kelas. Sampel penelitian di kelas VII-1 SMP Negeri 3 Darul Aman yang berjumlah 14 siswa tahun ajaran 2020/2021. Teknik pengumpulan data yang digunakan adalah dengan menggunakan pre-test dan post-test/ pasca-test. Berdasarkan hasil penelitian menunjukkan bahwa( =9,91>ttabel(0,05;13)=2,16) pada taraf signifikan 5%, artinya terdapat peningkatan kemampuan koneksi matematis siswa SMP kelas VII-1 SMP Negeri 3 Darul Aman setelah menggunakan pembelajaran berbasis etnomatematika.
PENERAPAN MODEL PROJECT BASED LEARNING UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS VIII SMP NEGERI 9 LANGSA Irma Yanti; Sofiyan; Muhammad Zaki
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 03 (2026): Volume 12 Nomer 03, September 2026 Publication
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i03.18741

Abstract

This study examined the improvement of junior high school students’ mathematical problem-solving ability after the implementation of the Project Based Learning (PjBL) model. The research used a quantitative pre-experimental approach with a One-Group Pretest-Posttest Design. The population comprised all eighth-grade students of SMP Negeri 9 Langsa in the second semester of the 2025/2026 academic year. A purposive sampling technique was used to select class VIII-1, consisting of 29 students. Data were collected through essay tests administered before and after the treatment, supported by learning worksheets and an instructional module. The instrument was examined through validity, reliability, item discrimination, and difficulty analyses before being used in the study. The descriptive results showed an increase in the average score from 43.17 on the pretest to 73.66 on the posttest. The paired-samples t-test indicated a statistically significant difference between the two measurements (t(28) = 23.36, p < 0.001). These findings indicate that the implementation of PjBL was associated with a significant improvement in students’ mathematical problem-solving ability on the topic of measures of central tendency. The findings support the use of project-oriented learning as an alternative instructional model for mathematics learning that requires students to investigate, discuss, apply concepts, and formulate solutions to contextual problems.
Co-Authors Anwar Irma Yanti Muhammad Zaki Tasya I