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All Journal International Journal of Evaluation and Research in Education (IJERE) Journal on Mathematics Education (JME) JURNAL PROFESI KEGURUAN Edunesia : jurnal Ilmiah Pendidikan Proceeding of International Conference on Science, Education, and Technology
Yohanes Leonardus Sukestiyarno
Universitas Negeri Semarang
Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Journal : International Journal of Evaluation and Research in Education (IJERE)

 1 
The spatial thinking process of the field-dependent students in reconstructing the geometrical concept Henry Suryo Bintoro; Yohanes Leonardus Sukestiyarno; Mulyono Mulyono; Walid Walid
International Journal of Evaluation and Research in Education (IJERE) Vol 11, No 3: September 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v11i3.22399

Abstract

Reconstructing geometrical concepts requires a spatial thinking process, so the spatial thinking process will be correct and complete. The phenomena of cognitive style differences cause different perceptions and thinking activities to solve geometric problems. This qualitative-explorative research describes the spatial thinking process of students with field-dependent cognitive styles in reconstructing the concept of spatial geometry based on the theory of Action-Process-Object-Schema (APOS). The research subjects were 27 students and obtained five students with field-dependent cognitive styles. The researchers used a purposive sampling technique from the subjects with a certain consideration. The researchers selected a student that met the three elements of spatial thinking and the five indicators of spatial ability. This research collected the data with interviews, documentation, and group embedded figure test (GEFT). The analyzing techniques used data collection, data reduction, data presentation, and concluding. The spatial thinking process of the field-dependent students had a spatial category with three indications: i) Inaccuracy in the elements of representational thinking; ii) The inaccuracy of spatial perception indicators; and iii) Not using de-encapsulation mental mechanisms.
Student activities in solving mathematics problems with a computational thinking using Scratch Neneng Aminah; Yohanes Leonardus Sukestiyarno; Adi Nur Cahyono; Siti Mistima Maat
International Journal of Evaluation and Research in Education (IJERE) Vol 12, No 2: June 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v12i2.23308

Abstract

The progress of the times requires students to be able to think quickly. Student activities in learning are always associated with technology and students’ thinking activities and are expected to think computationally. Therefore, this study aimed to determine how learning with the concept of computational thinking (CT) using the Scratch program can improve students’ mathematical problem-solving abilities. An exploratory research design was conducted by involving 132 grade VIII students in Kuningan, Indonesia. Data analysis began with organization, data description, and statistical testing. The results showed that students performed the concepts of abstraction thinking, algorithmic thinking, decomposition, and evaluation in solving mathematical problems. There were differences in students’ problem-solving abilities before and after the intervention. Students’ activeness in solving problems using the CT concept through a calculator significantly affected 52.3% of the ability to solve mathematical problems.
Assessing numeracy skills on flat shapes and scaffolding forms in junior high school Setiyani Setiyani; Stevanus Budi Waluya; Yohanes Leonardus Sukestiyarno; Adi Nur Cahyono; Dina Pratiwi Dwi Santi
International Journal of Evaluation and Research in Education (IJERE) Vol 13, No 1: February 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v13i1.25186

Abstract

Based on The Regulation of The Minister of Education, Culture, Research and Technology No.17 of 2021, cognitive learning outcomes consist of literacy and numeracy as measured through a minimum competency assessment (MCA) with grade 5, 8, and 11. The subjects in this study are 42 students of grade VIII (second grade) from state Junior High School 4 Cirebon and State Junior High School 2 Cirebon, Indonesia. The instruments were tests of numeracy literacy skills, documentation, and interviews. Purposive sampling was used to determine the subject of analysis of test results and interviews. The data were analyzed descriptively through the following stages: data reduction, data presentation, and conclusions drawing. The results showed that the research subjects are still not familiar with numeracy literacy questions which have the characteristics of always being preceded by texts, not understanding what is known and asked in the questions so they tend to blindly guess the answers and needed to be reminded of the prerequisite material. Based on the results of this study, teachers can develop learning media, project-based learning, scaffolding, and teaching materials that accommodate numeracy skills or differentiated learning.
Co-Authors Adi Nur Cahyono Arief Agoestanto Dina Pratiwi Dwi Santi Eko Andy Purnomo Ferry Ferdianto Henry Suryo Bintoro Isfarudi Isnarto Isnarto Iwan Junaedi Matthias Ludwig Mellawaty Mellawaty Miftahudin Miftahudin Mohammad Asikin Muhammadi Ghozian Kafi Ahsan Mulyono Mulyono Neneng Aminah Setiyani Siti Latifah Siti Mistima Maat St. Budi Waluya Suprayitno Suprayitno Tiara Tiara Walid Walid, Walid Zaenuri Zaenuri