Dwi Yulita
Universitas Islam Negeri Raden Intan Lampung

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MATEMATIKA FINANSIAL SEBAGAI UPAYA PENGUATAN LITERASI KEUANGAN DI SEKOLAH MENENGAH Virlizha Ananda putri; Tiara Nurayuwati; Pika Audia Sari; Netriwati; Dwi Yulita
Jurnal Ilmiah Matematika Realistik Vol. 6 No. 2 (2025): JURNAL ILMIAH MATEMATIKA REALISTIK
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/ji-mr.v6i2.1027

Abstract

Penelitian ini bertujuan untuk menganalisis penerapan konsep matematika finansial sebagai sarana penguatan literasi keuangan dalam pembelajaran di sekolah menengah. Penelitian ini berfokus pada bagaimana pembelajaran matematika finansial dapat membantu meningkatkan literasi keuangan siswa sekolah menengah. Metode penelitian yang digunakan adalah metode kuantitatif dengan pendekatan quasi experiment design. Populasi penelitian terdiri dari siswa SMP Negeri 1 Jati Agung, dengan sampel dua kelas IX yang berjumlah 58 siswa, yaitu kelas IX E sebanyak 30 siswa sebagai kelas eksperimen dan kelas IX G sebanyak 28 siswa sebagai kelas kontrol. Instrumen penelitian berupa angket literasi keuangan serta soal-soal aritmetika sosial yang meliputi materi bunga tunggal, bunga majemuk, anuitas (tabungan berkala), bunga, diskon (potongan harga), dan PPN (Pajak Pertambahan Nilai). Berdasarkan hasil uji normalitas Kolmogorov–Smirnov dan Shapiro–Wilk, diketahui bahwa data skor pada kelas eksperimen dan kelas kontrol tidak berdistribusi normal (nilai signifikansi < 0,05). Oleh karena itu, analisis data dilakukan menggunakan uji non-parametrik untuk membandingkan dua kelompok independen. Sementara itu, berdasarkan uji normalitas Kolmogorov–Smirnov terhadap data residual, diperoleh nilai signifikansi sebesar 0,200 (> 0,05), sehingga dapat disimpulkan bahwa data residual berdistribusi normal dan model analisis yang digunakan memenuhi asumsi normalitas residual.Berdasarkan hasil analisis data angket literasi matematika dan tes hasil belajar pada dua kelas sampel, yaitu kelas IX E dan IX G, dapat disimpulkan bahwa: Secara deskriptif, rata-rata skor literasi matematika dan hasil belajar siswa pada kelas IX G lebih tinggi dibandingkan dengan kelas IX E. Hal ini menunjukkan adanya kecenderungan peningkatan kemampuan siswa pada kelas IX G.
PENGARUH PENERAPAN MODEL PROJECT BASED LEARNING TERHADAP KEMAMPUAN MENYELESAIKAN SOAL HOTS MATEMATIS SISWA Pika Audia Sari; Dwi Yulita; Tiara Nurayuwati; Virlizha Ananda Putri; Netriwati
Jurnal Ilmiah Matematika Realistik Vol. 7 No. 1 (2026): JURNAL ILMIAH MATEMATIKA REALISTIK
Publisher : Universitas Teknokrat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33365/ji-mr.v7i1.1845

Abstract

This study aims to analyze the effect of implementing the Project Based Learning (PjBL) model on students' ability to solve Higher Order Thinking Skills (HOTS) mathematical problems at SMP Tunas Dharma. The background of this study is based on the importance of higher-order thinking skills in mathematics learning and the need for instructional models that can enhance these skills. The novelty of this research lies in the implementation of the Project Based Learning (PjBL) model to improve students' ability to solve HOTS mathematical problems in basic statistics at the junior high school level, which is examined through HOTS test results and students' responses to the learning process. This study employed a quantitative approach with an experimental design. The research subjects consisted of two classes: an experimental class that received instruction using the Project Based Learning (PjBL) model and a control class that received conventional learning. The study was conducted through several stages, namely the administration of a pre-test, the implementation of Project Based Learning (PjBL) in the experimental class and conventional learning in the control class, and the administration of a post-test to measure students' HOTS mathematical abilities after the treatment. The research instrument was a HOTS mathematical ability test that had been validated and tested for reliability. Data analysis techniques included validity and reliability tests, normality tests, homogeneity tests, descriptive statistical analysis, and the Independent Samples t-test to determine differences in HOTS mathematical abilities between the two research groups. The results showed that the data were normally distributed and homogeneous. Based on the results of the Independent Samples t-test, a significance value of p < 0.05 was obtained, indicating a significant difference between the experimental and control groups. Therefore, it can be concluded that the implementation of the Project Based Learning (PjBL) model has a significant effect on students' ability to solve HOTS mathematical problems.