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The Effectiveness of Blended Learning on Students' Mathematical Problem Solving Ability Noviyana, Hesti; Nurdiana, Aty; Sutrisno AB, Joko
Jurnal Inovasi Matematika Vol 4 No 2 (2022): Inovasi Matematika (Inomatika)
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (906.648 KB) | DOI: 10.35438/inomatika.v4i2.340

Abstract

Effectiveness Of LKPD Containing Character Education Based On Group Investigation In Mathematics Learning Noviyana, Hesti; AB, Joko Sutrisno
Jurnal Inovasi Matematika Vol 7 No 1 (2025): Inovasi Matematika (Inomatika)
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35438/inomatika.v7i1.492

Abstract

This study aims to examine the effectiveness of the use of LKPD containing Character education based on Group Investigation in mathematics learning in terms of student learning outcomes. The study is a quasi-experimental study with a pretest-posttest control group design. In this design, two groups of students (experimental group and control group) were measured for their learning outcomes on flat shape material, before and after treatment was given. The study population was grade VII students of SMP Negeri 7 Bandar Lampung. Data analysis of the results of this study used the t-test, with analysis prerequisites in the form of normality and homogeneity of variance tests. The results of the normality test with Kolmogorov-Smirnov showed a p value = 0.200 which is greater than 0.05, meaning that the data is normally distributed and the results of the homogeneity test with Levene's Test obtained a p value = 0.711 greater than 0.05, which means that the variance between groups is homogeneous. The results of the independent t-test for the comparison between the experimental group and the control group on the posttest using SPSS showed that the p-value = 0.000 which is smaller than 0.05, meaning that there is a significant difference between the mathematics learning outcomes of students in the experimental group using LKPD containing Character education based on Group Investigation and the control group. The average mathematics learning outcomes of the experimental group were 85, while the control group was only 74. This shows that the use of LKPD containing Character education based on Group Investigation is effective in mathematics learning in terms of students' mathematics learning outcomes on flat shape material.
Evaluating chatGPT’s accuracy in understanding statistical concepts: Performance and implications for learning Rahmawati, Fitriana; Noviyana, Hesti; Mauliana, Yunita; Pradana, Kenny Candra; Pratama, Ryan; Zakia, Atiqo Haya
Al-Jabar: Jurnal Pendidikan Matematika Vol 16 No 2 (2025): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v16i2.28828

Abstract

Purpose: This study examines students’ ability to comprehend statistical concepts explained by ChatGPT and explores both students’ and lecturers’ perceptions regarding the clarity and instructional appropriateness of ChatGPT’s explanations within the framework of Intelligent Tutoring Systems (ITS), particularly in learning contexts that require high cognitive engagement. Method: A qualitative approach with a quasi-experimental design was employed. Participants were divided into an experimental group that utilized ChatGPT during learning activities and a control group that received conventional lecturer-led instruction. Data were gathered through quizzes, classroom observations, and Focus Group Discussions (FGDs) involving students and lecturers. The collected data were analyzed descriptively using the Miles and Huberman model to identify recurring themes related to conceptual understanding, learning behavior, and instructional effectiveness. Findings: The results reveal that most students experienced substantial difficulty in understanding statistical explanations generated by ChatGPT. Students frequently relied on copying answers without critically engaging with the reasoning process. Major obstacles included fragmented explanations, unfamiliar symbolic representations, and the use of technical language that exceeded students’ conceptual readiness, leading to weak conceptual understanding. Conversely, students who possessed a solid foundation in statistical concepts demonstrated better learning outcomes, even when using ChatGPT. Lecturers consistently emphasized that ChatGPT cannot substitute the pedagogical role of lecturers but may provide limited support when its use is guided and supervised. Significance: This study underscores that ChatGPT should be positioned as a supplementary instructional tool rather than a primary source of explanation in statistics education. Effective integration requires structured guidance, conceptual reinforcement, and the cultivation of students’ critical thinking skills to avoid misconceptions. These findings contribute to the discourse on responsible human AI collaboration in higher education and offer practical implications for implementing generative AI within ITS based learning environments.