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Improving Teachers’ Self-Efficacy through Training: An Impact for the Freedom of Students’ Mathematical Thinking Haninda Bharata; Sugeng Sutiarso
Didaktik Matematika Vol 8, No 1 (2021): Jurnal Didaktik Matematika
Publisher : Universitas Syiah Kuala

Teacher self-efficacy is an important component of teacher competence. At present, efforts to improve teacher competencies have not been carried out simultaneously for teacher activities in the classroom (open class) and outside the classroom (training). This quasi-experimental study aimed to examine the effectiveness of soft skills training and the practice of lesson study on improving mathematics teacher self-efficacy and describe the impact of teacher self-efficacy on the freedom of students' mathematical thinking. The study involved three mathematics teachers and 90 students from three different junior high school regions in Bandar Lampung, Indonesia (city center, semi-urban, and suburban). Data was collected through questionnaire, observation, and interview. The data were then analyzed descriptively. The effectiveness of soft skills training and the practice of lesson study on improving mathematics teachers’ self-efficacy was examined using Wilcoxon Test. The results showed the differences in the average teachers’ self-efficacy before and after participating in soft skills training and the practice of lesson study (with an increase of 0.82/high). The increase in teachers’ self-efficacy also positively affected the freedom of students’ mathematical thinking.

Analysis of Students' Mathematical Communication Ability in Completing Mathematical Modeling M Khusnudin; Haninda Bharata
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 6 No. 2 (2022)
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v6i2.2506

Mathematical communication skills are essential skills that students must have in learning mathematics. The communication process can help students build their understanding of concepts in mathematics and are easy to understand. Mathematical communication is a tool for transmitting mathematical knowledge in building mathematical knowledge in learning activities. Indicators of students' ability to communicate mathematically in learning mathematics are (1) expressing mathematical ideas by speaking, writing, demonstrating, and describing them in visual form, (2) understanding, interpreting, and assessing mathematical ideas presented in written, oral or visual form, (3) use language, notation and mathematical structure to express ideas, draw relationships and build models. This study aims to: (1) describe the mathematical communication skills of grade 7 students in completing mathematical modeling on the One Variable Linear Equation (PLSV) material and (2) identify the components of students' mathematical communication skills on each achievement indicator. This research is a qualitative descriptive study. A qualitative approach is used to understand the context of the subject. Based on the three indicators of students' mathematical communication skills, an average of 17.86% of students' skills can be classified as very low. It shows that most students cannot model solving real problems or everyday life related to mathematical communication.

Development of a Quizizz-Based Mathematics Learning Assessment Tools to Improve Students' Concepts Understanding Septi Wulandari; Haninda Bharata; Undang Rosidin
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 7 No. 1 (2023)
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v7i1.3103

This study aims to develop a Quizziz-based assessment tool and test its effectiveness on students' conceptual understanding abilities. This research began with preliminary studies, preparation of Quizziz-based Assessment Tools, validation of Quizziz-based Assessment Tools, limited field trials, and field trials. The subjects of this study were class VIII students of SMPN 6 Kota Metro in the 2022/2023 academic year. Research data was obtained through tests of critical thinking skills. The preliminary study results show the need to develop a Quizziz-based Assessment Tool. The Quizziz-based Assessment Toolkit is prepared by compiling a draft of the Quizziz-based Assessment Toolkit and all of its components. The results of the validation show that the Quizziz-based Assessment Tool meets the eligibility standards for content, media, and language in the proper category. The results of the field tests showed that there were differences in the conceptual understanding abilities of students in the experimental class and the control class. The conceptual understanding abilities of students who used Quizziz-based Assessment Tools were higher than the students' conceptual understanding abilities who did not use Quizziz-based Assessment Tools. Based on the field test results, it can be concluded that the Quizziz-based Assessment Tool effectively increases students' conceptual understanding skills.

Analysis of Students' Mathematical Communication Ability in Completing Mathematical Modeling M Khusnudin; Haninda Bharata
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 6 No. 2 (2022)
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v6i2.2506

Mathematical communication skills are essential skills that students must have in learning mathematics. The communication process can help students build their understanding of concepts in mathematics and are easy to understand. Mathematical communication is a tool for transmitting mathematical knowledge in building mathematical knowledge in learning activities. Indicators of students' ability to communicate mathematically in learning mathematics are (1) expressing mathematical ideas by speaking, writing, demonstrating, and describing them in visual form, (2) understanding, interpreting, and assessing mathematical ideas presented in written, oral or visual form, (3) use language, notation and mathematical structure to express ideas, draw relationships and build models. This study aims to: (1) describe the mathematical communication skills of grade 7 students in completing mathematical modeling on the One Variable Linear Equation (PLSV) material and (2) identify the components of students' mathematical communication skills on each achievement indicator. This research is a qualitative descriptive study. A qualitative approach is used to understand the context of the subject. Based on the three indicators of students' mathematical communication skills, an average of 17.86% of students' skills can be classified as very low. It shows that most students cannot model solving real problems or everyday life related to mathematical communication.

Development of a Quizizz-Based Mathematics Learning Assessment Tools to Improve Students' Concepts Understanding Septi Wulandari; Haninda Bharata; Undang Rosidin
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 7 No. 1 (2023)
Publisher : Institut Agama Islam Ma'arif NU (IAIMNU) Metro Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v7i1.3103

This study aims to develop a Quizziz-based assessment tool and test its effectiveness on students' conceptual understanding abilities. This research began with preliminary studies, preparation of Quizziz-based Assessment Tools, validation of Quizziz-based Assessment Tools, limited field trials, and field trials. The subjects of this study were class VIII students of SMPN 6 Kota Metro in the 2022/2023 academic year. Research data was obtained through tests of critical thinking skills. The preliminary study results show the need to develop a Quizziz-based Assessment Tool. The Quizziz-based Assessment Toolkit is prepared by compiling a draft of the Quizziz-based Assessment Toolkit and all of its components. The results of the validation show that the Quizziz-based Assessment Tool meets the eligibility standards for content, media, and language in the proper category. The results of the field tests showed that there were differences in the conceptual understanding abilities of students in the experimental class and the control class. The conceptual understanding abilities of students who used Quizziz-based Assessment Tools were higher than the students' conceptual understanding abilities who did not use Quizziz-based Assessment Tools. Based on the field test results, it can be concluded that the Quizziz-based Assessment Tool effectively increases students' conceptual understanding skills.

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