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All Journal J-PiMat : Jurnal Pendidikan Matematika Eduma : Mathematics Education Learning and Teaching
Handayani Budi Utami
Universitas Negeri Jakarta
Education Mathematics

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Pentingnya Kemampuan Berpikir Kritis dalam Dunia Pendidikan Matematika Handayani Budi Utami
J-PiMat : Jurnal Pendidikan Matematika Vol 4, No 2 (2022): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v4i2.2025

Abstract

Mathematical critical thinking ability is one of the most needed skills in the modern era. Given the importance of critical thinking skills, education has an important role in improving critical thinking skills. This article will discuss critical thinking, the importance of critical thinking skills, especially in the mathematical aspect, as well as the efforts made to develop critical thinking skills. The writing of this article uses the literature review method. From the results of the study, critical thinking is based on skills, such as the ability to judge the truth, or to weigh relevant evidence, or to identify erroneous arguments. Critical thinking skills are important elements that must be possessed by students in analyzing mathematical problems. Given the important role of critical thinking today, many efforts have been made to improve critical thinking skills.
Developing Algebra-Based Test Items for Measuring Students’ Mathematical Literacy Handayani Budi Utami
EduMa: Mathematics education learning and teaching Vol. 14 No. 1 (2025)
Publisher : Jurusan Tadris Matematika UIN Siber Syekh Nurjati Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/eduma.v14i1.21581

Abstract

This study aims to develop valid and reliable algebra questions to assess students' mathematical literacy skills. Mathematical literacy is a key indicator in international assessments such as PISA, which emphasizes students' ability to apply mathematical concepts in real-world contexts. The research method used was development research (R&D) employing the 4D model: Define, Design, Develop, and Disseminate (implemented until the Develop stage). The instrument was constructed based on mathematical literacy indicators and validated through expert judgment using Aiken’s V. Empirical validation was conducted using Pearson Product Moment correlation and the reliability was tested using Cronbach’s Alpha. The results showed that all question items had correlation coefficients ranging from 0.513 to 0.836, exceeding the critical value of r (0.221), indicating good construct validity. The reliability test yielded a Cronbach’s Alpha of 0.712, suggesting strong internal consistency. These findings confirm that the developed algebra questions can be effectively used as an instrument to assess students’ mathematical literacy skills in a valid and reliable manner.
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