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All Journal Union: Jurnal Ilmiah Pendidikan Matematika International Journal of Research in Mathematics Education
Sangco, Retchelle P.
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Education Mathematics

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The Effect of Mathematical Disposition on Students' Mathematical Creative Thinking Abilities in Class XI Thoyibi, Ali Imron; Sangco, Retchelle P.
International Journal of Research in Mathematics Education Vol. 1 No. 2 (2023)
Publisher : Faculty of Tarbiya and Teacher Trainning, Universitas Islam Negeri Prof. K.H. Saifuddin Zuhri Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24090/ijrme.v1i2.9773

Abstract

Mathematics as a lesson that is useful for the development of thinking, thinking becomes an important process in it, where students are expected to be able to think deductively. Students are asked to understand the concept of the material that has been delivered with an active and conscious attitude, or referred to as a disposition. The purpose of this research was to find out the effect of mathematical disposition on students' mathematical creative thinking abilities in class XI MIPA MAN 2 Banyumas. The population in this research were all students of class XI MIPA totaling 243 students, 153 students were taken as samples using simple random sampling technique. This research was conducted using quantitative research methods where data was obtained by distributing research instruments in the form of questionnaires and tests. The analysis technique uses a simple linear regression analysis technique. Before the analysis test was carried out, the data went through analysis prerequisite tests, namely the normality test, regression significance test, and linearity test. The results of this study indicate that there is an influence of mathematical disposition on students' mathematical creative thinking abilities of 12,6%. Also regression equation obtained, Ŷ=8.325+0.730X which shows that the regression coefficient value is positive, which means that if the mathematical disposition (X) increases by 1 unit, the student's mathematical creative thinking ability (Y) will increase by 0.730 units.
Integration of Sustainable Development Goals in university STEM courses: A case study Nuha, Muhammad Azmi; Sangco, Retchelle P.
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17196

Abstract

The objectives of this study are: (1) to provide an overview of the validity of learning tools for STEM Method courses based on the Sustainable Development Goals Curriculum, (2) to assess the practicality of these learning tools, and (3) to evaluate their effectiveness in enhancing students' problem-solving abilities. This research employs the Research and Development (R&D) methodology. Data collection methods include interviews, product validation, questionnaires, and tests. Data analysis techniques encompass qualitative analysis, product validity testing, practicality testing, and effectiveness testing. The findings indicate that: (1) learning tools for STEM Method courses based on the Sustainable Development Goals curriculum comprise a Learning Plan and teaching materials, both of which are highly valid (scores of 3.4 and 3.5 respectively), (2) the practicality test of the teaching materials scored 3.73, indicating high practicality, and (3) these tools effectively improve students' problem-solving abilities, as evidenced by the experimental class outperforming the control class. In conclusion, the study demonstrates that the designed learning tools aligned with the Sustainable Development Goals Curriculum not only show strong validity and practicality but also significantly enhance students' problem-solving skills in STEM education contexts.
Newman’s error analysis at mathematics pre-service teachers in solving literacy problems Nuha, Muhammad 'Azmi; Alfathy, Ragil Meita; Sangco, Retchelle P.
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 13 No 2 (2025)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v13i2.20038

Abstract

This study aims to: (1) to provide an overview of the errors of prospective mathematics teacher students in solving mathematics literacy problems based on Newman's Error Analysis, and (2) to provide an overview of the factors that cause prospective mathematics teacher students to make errors in solving mathematics literacy problems. This research is qualitative research using a grounded theory approach. The subjects of this study are 92 prospective mathematics teacher students in the study program of Tadris Mathematics UIN Prof. K.H. Saifuddin Zuhri Purwokerto. The data collection techniques in this study are: (1) test and (2) interview. The analysis technique in this study uses qualitative data analysis techniques consisting of (1) data reduction, (2) data presentation, and (3) conclusion drawn. The data validity technique used in this study is triangulation. The results of the study show that: (1) reading error, comprehension error, and encoding error are not problems for students in solving mathematical literacy problems, transformation errors are problems for students because the errors are found in all four mathematics literacy questions, and process skill errors are problems for students in mathematics literacy questions that measure the ability to connect mathematical facts/concepts to make problem-solving procedures work, and (2) factors that cause prospective mathematics teacher students to make errors in solving mathematical literacy problems include: (a) errors in making mathematical models that involve time, (b) errors in length accuracy, (c) errors affected by images, (d) errors in replacing unknown values with spelling, (e) errors in recalling information, (f) errors in estimating the shape of the 3D Geometric Shapes, (g) errors in remembering mathematical formulas,  (h) error in choosing adjacent concepts, (i) error not recognizing mathematical concepts, (j) error preparing calculations, (k) error converting units, and (l) error inferring with estimates.
Co-Authors Nuha, Muhammad 'Azmi Nuha, Muhammad Azmi Ragil Meita Alfathy, Ragil Meita Thoyibi, Ali Imron