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Development of problem-based learning materials on linear programming to facilitate students' mathematical problem-solving skills Situmorang, Ruth Sahana; Hutapea, Nahor Murani; Armis
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 1 (2024): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i1.2339

Abstract

This study aims to develop Problem-Based Learning (PBL) instructional tools, including a syllabus, lesson plans, and student activity sheets, to enhance students' mathematical problem-solving skills. The development process follows the 4-D model, consisting of four stages: Define, Design, Develop, and Disseminate. Data were collected through interviews, observations, and questionnaires, using validation sheets and student response surveys as instruments. The validity of the instructional tools was assessed by experts, with results indicating high validity, with average scores of 3.82 for the syllabus, 3.93 for the lesson plans, and 3.79 for the student activity sheets. Additionally, the practicality of the LAS was tested in both small and large groups, showing high practicality with average scores of 3.52 and 3.64, respectively. These findings indicate that the developed instructional tools meet the required standards of validity and practicality, making them suitable for classroom use. This study successfully created PBL-based instructional tools that effectively support the development of students' mathematical problem-solving skills and are expected to positively impact mathematics learning.
Developing problem-based learning modules for flat-sided geometry to facilitate students' mathematical connection skills Ali, Elsiska Ningsi; Armis; Saragih, Sehatta
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 1 (2024): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i1.2597

Abstract

This development study aims to produce a problem-based learning module on flat-sided geometry designed to enhance students' mathematical connection skills in Phase D. The teaching module consists of three main sections: the core, general information, and appendices. Given the limitations in students' mathematical connection skills, it is essential for teachers to use effective learning models. Problem-based learning focuses on real-world problems as the central point of instruction, helping students connect lessons to practical, everyday situations. This study followed the 4D development model, which includes the stages of define, design, develop, and disseminate. Product validation was conducted by three validators, who provided feedback for improvements. The readability of the student worksheets was tested through one-on-one trials with three students. Additionally, small-group trials involving 15 Phase D students from MTsN 4 Kampar were conducted to assess the module's practicality. The validation results showed an average score of 3.58, indicating the module is highly valid. The practicality test resulted in an average score of 87.5%, classifying the module as very practical. These findings demonstrate that the developed module can effectively improve students' mathematical connection skills. Furthermore, teachers can use this product as a teaching tool for the flat-sided geometry material in the mathematics learning process.
Development of problem-based learning materials on linear programming to facilitate students' mathematical problem-solving skills Situmorang, Ruth Sahana; Hutapea, Nahor Murani; Armis
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 1 (2024): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i1.2339

Abstract

This study aims to develop Problem-Based Learning (PBL) instructional tools, including a syllabus, lesson plans, and student activity sheets, to enhance students' mathematical problem-solving skills. The development process follows the 4-D model, consisting of four stages: Define, Design, Develop, and Disseminate. Data were collected through interviews, observations, and questionnaires, using validation sheets and student response surveys as instruments. The validity of the instructional tools was assessed by experts, with results indicating high validity, with average scores of 3.82 for the syllabus, 3.93 for the lesson plans, and 3.79 for the student activity sheets. Additionally, the practicality of the LAS was tested in both small and large groups, showing high practicality with average scores of 3.52 and 3.64, respectively. These findings indicate that the developed instructional tools meet the required standards of validity and practicality, making them suitable for classroom use. This study successfully created PBL-based instructional tools that effectively support the development of students' mathematical problem-solving skills and are expected to positively impact mathematics learning.
Development of discovery learning-based student worksheets to facilitate critical thinking skills in phase D students Hafshoh; Suanto, Elfis; Armis
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 2 (2024): Jurnal Absis (In Press)
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i2.2588

Abstract

The aim of this development research is to design discovery learning-based student worksheets (LKPD) to facilitate the mathematical critical thinking skills of Phase D students by meeting validity and practicality criteria. This study is motivated by the crucial role of critical thinking skills in students' education. The research employs a development method (R&D) following the 4-D model (define, design, develop, and disseminate). The study involved 15 students from Babussalam Junior High School, Pekanbaru, as the test subjects. Research instruments included a validation questionnaire to assess the validity of the LKPD and a student response questionnaire to evaluate its practicality. Based on the expert validator's analysis, the validity score was 94.43%, indicating the LKPD is highly valid. Meanwhile, the practicality score, derived from the student response questionnaire, was 87.98%, categorizing the LKPD as highly practical. Thus, the development of discovery learning-based LKPD is recommended for use in learning activities related to circle content to enhance the critical thinking skills of Phase D students.
Developing problem-based learning modules for flat-sided geometry to facilitate students' mathematical connection skills Ali, Elsiska Ningsi; Armis; Saragih, Sehatta
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 1 (2024): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i1.2597

Abstract

This development study aims to produce a problem-based learning module on flat-sided geometry designed to enhance students' mathematical connection skills in Phase D. The teaching module consists of three main sections: the core, general information, and appendices. Given the limitations in students' mathematical connection skills, it is essential for teachers to use effective learning models. Problem-based learning focuses on real-world problems as the central point of instruction, helping students connect lessons to practical, everyday situations. This study followed the 4D development model, which includes the stages of define, design, develop, and disseminate. Product validation was conducted by three validators, who provided feedback for improvements. The readability of the student worksheets was tested through one-on-one trials with three students. Additionally, small-group trials involving 15 Phase D students from MTsN 4 Kampar were conducted to assess the module's practicality. The validation results showed an average score of 3.58, indicating the module is highly valid. The practicality test resulted in an average score of 87.5%, classifying the module as very practical. These findings demonstrate that the developed module can effectively improve students' mathematical connection skills. Furthermore, teachers can use this product as a teaching tool for the flat-sided geometry material in the mathematics learning process.
Improving mathematical problem-solving skills in ratio through the application of problem-based learning Maharani, Zulfa; Sakur; Armis
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 2 (2024): Jurnal Absis (In Press)
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i2.2602

Abstract

The main objectives of this study were to improve the quality of learning activities and enhance students' skills in Mathematical Problem Solving Skills. The research was conducted during the even semester of the 2023/2024 school year by implementing classroom action research over two cycles on ratio content. The subjects of this study were 41 students from class VII-3 of SMPN 42 Pekanbaru. The learning tools used in the study included the Flow of Learning Objectives, teaching modules, learner worksheets, teaching materials on ratio content, and assessment tools. The data collection instruments consisted of learner and teacher activity sheets and tests for assessing Mathematical Problem Solving Skills. Data analysis on the improvement of the learning process was obtained based on the activity sheets from both learners and teachers. Additionally, the improvement of students' Mathematical Problem Solving Skills was assessed through tests conducted at the end of each cycle. The results of the observation sheets from cycles I and II showed that the learning process improved with each meeting. The students' scores in Mathematical Problem Solving Skills increased from the initial test to the cycle I test by 11.73 points, with an initial average of 43.69 and a cycle I test average of 55.42. From the cycle I test to the cycle II test, there was an increase of 18.25 points, with an average score of 73.67 in the cycle II test. Therefore, the results of this research, conducted using the Problem-Based Learning model, indicate a potential to improve the learning process and enhance students' problem-solving skills.
Development of discovery learning-based student worksheets to facilitate critical thinking skills in phase D students Hafshoh; Suanto, Elfis; Armis
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 2 (2024): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i2.2588

Abstract

The aim of this development research is to design discovery learning-based student worksheets (LKPD) to facilitate the mathematical critical thinking skills of Phase D students by meeting validity and practicality criteria. This study is motivated by the crucial role of critical thinking skills in students' education. The research employs a development method (R&D) following the 4-D model (define, design, develop, and disseminate). The study involved 15 students from Babussalam Junior High School, Pekanbaru, as the test subjects. Research instruments included a validation questionnaire to assess the validity of the LKPD and a student response questionnaire to evaluate its practicality. Based on the expert validator's analysis, the validity score was 94.43%, indicating the LKPD is highly valid. Meanwhile, the practicality score, derived from the student response questionnaire, was 87.98%, categorizing the LKPD as highly practical. Thus, the development of discovery learning-based LKPD is recommended for use in learning activities related to circle content to enhance the critical thinking skills of Phase D students.
Improving mathematical problem-solving skills in ratio through the application of problem-based learning Maharani, Zulfa; Sakur; Armis
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 2 (2024): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i2.2602

Abstract

The main objectives of this study were to improve the quality of learning activities and enhance students' skills in Mathematical Problem Solving Skills. The research was conducted during the even semester of the 2023/2024 school year by implementing classroom action research over two cycles on ratio content. The subjects of this study were 41 students from class VII-3 of SMPN 42 Pekanbaru. The learning tools used in the study included the Flow of Learning Objectives, teaching modules, learner worksheets, teaching materials on ratio content, and assessment tools. The data collection instruments consisted of learner and teacher activity sheets and tests for assessing Mathematical Problem Solving Skills. Data analysis on the improvement of the learning process was obtained based on the activity sheets from both learners and teachers. Additionally, the improvement of students' Mathematical Problem Solving Skills was assessed through tests conducted at the end of each cycle. The results of the observation sheets from cycles I and II showed that the learning process improved with each meeting. The students' scores in Mathematical Problem Solving Skills increased from the initial test to the cycle I test by 11.73 points, with an initial average of 43.69 and a cycle I test average of 55.42. From the cycle I test to the cycle II test, there was an increase of 18.25 points, with an average score of 73.67 in the cycle II test. Therefore, the results of this research, conducted using the Problem-Based Learning model, indicate a potential to improve the learning process and enhance students' problem-solving skills.
LEMBAR KERJA SISWA BERBASIS CONTEXTUAL TEACHING AND LEARNING UNTUK MEMFASILITASI KEMAMPUAN LITERASI MATEMATIS SISWA Khairunnisak, Futri; Armis; Sakur
ALGORITMA: Journal of Mathematics Education Vol. 7 No. 1 (2025): ALGORITMA Journal Of Mathematics Education
Publisher : Faculty of Educational sciences, UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/ajme.v7i1.46715

Abstract

Abstact Mathematical literacy is a crucial skill, yet many students still struggle with solving contextual problems due to limited supporting materials such as student worksheets (LKPD). This study is a research and development (R&D) study employing the 4D model (Define, Design, Develop, and Disseminate) aimed at producing a student worksheet based on Contextual Teaching and Learning (CTL) that is both valid and practical. The developed content focuses on systems of linear equations in two variables. The worksheet was validated by three mathematics education experts, tested through a one-to-one evaluation with three students, and a small group test with 22 eighth-grade students from a public junior high school in Riau Province. Validation results showed the worksheet to be highly valid in terms of content, construct, CTL approach, and mathematical literacy. The practicality test indicated that the worksheet was practical in terms of appearance, presentation, and usefulness. It can be concluded that the developed worksheet is both valid and practical. Further research is suggested to examine its effectiveness and adaptability to other topics or grade levels.   Abstrak Kemampuan literasi matematis penting dimiliki siswa, namun masih banyak yang mengalami kesulitan dalam menyelesaikan masalah kontekstual karena keterbatasan LKPD yang mendukung. Penelitian ini merupakan penelitian pengembangan (R&D) dengan model 4D (Define, Design, Develop, Disseminate) yang bertujuan menghasilkan LKPD berbasis Contextual Teaching and Learning (CTL). Materi yang dikembangkan berfokus pada sistem persamaan linear dua variabel. LKPD divalidasi oleh tiga dosen pendidikan matematika, diuji melalui one-to-one evaluation dengan tiga siswa, serta small group testdengan 22 siswa kelas VIII dari salah satu SMP Negeri di Provinsi Riau. Hasil validasi menunjukkan LKPD sangat valid dari segi isi, konstruksi, pendekatan CTL, dan literasi matematis. Uji kepraktisan menunjukkan LKPD tergolong praktis dari aspek tampilan, penyajian, dan manfaat. Dengan demikian, LKPD yang dikembangkan dinyatakan valid dan praktis. Penelitian selanjutnya disarankan untuk menguji efektivitas serta mengadaptasikan LKPD ini pada topik atau jenjang yang berbeda
KONSERVASI KEANEKARAGAMAN HAYATI FLORA DAN FAUNA PADA SITE PLANT PT POLYTAMA PROPINDO Prastyo, Elli; Ibrahim, Puji Astuti; Armis, Hana Rizkia
Jurnal Rekayasa Teknologi dan sains Vol 3, No 2 (2019): Jurnal Rekayasa, Teknologi, dan Sains
Publisher : Fakultas Teknik Universitas Malahayati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jrets.v3i2.1909

Abstract

Kebutuhan lahan yang semakin meningkat karena perkembangan industrialisasi telah menyebabkan perusakan habitat, fragmentasi, dan penggantian spesies asli yang sensitif dengan spesies yang tidak asli. Konservasi keanekaragaman hayati menjadi perhatian khususnya pada negara berkembang dimana pertumbuhan penduduk dan industrialisasi semakin meningkat. Pengembangan konservasi merupakan proses untuk menciptakan perencanaan dan pelaksanaan awal sebagai dasar perlindungan ekologi. Partisipasi aktif dari pemangku kepentingan dan masyarakat lokal merupakan strategi penentu keberhasilan keanekaragaman hayati. Oleh karena penting mengkaji tanggung jawab perusahaan dalam usaha perlindungan dan konservasi keanekaragaman hayati. Penelitian ini bertujuan untuk mengetahui peran PT. Polytama Propindo dalam melaksanakan program konservasi keanekaragaman hayati. Pengambilan data keanekaragaman hayati diperoleh dari site plant PT. Polytama Propindo. Hasil penelitian menunjukkan PT. Polytama Propindo telah memanfaatkan lahan di area site plant untuk konservasi kehati dari tahun 2015 sampai 2019. Indeks biota air, flora, dan fauna mengalami trend peningkatan dari tahun 2015 sampai 2019. Nilai dan prinsip dasar dari konservasi keanekaragaman hayati oleh PT. Polytama Propindo pada site plant berdasarkan pada keselarasan dan pelestarian flora dan fauna endemic khas Kabupaten Indramayu. Kata kunci: PT. Polytama Propindo, Keanekaragaman, hayati, konservasi, indeks, flora, fauna
Co-Authors ', Syofni ', Zulkarnain Afriyeni, Kartika Ali, Elsiska Ningsi Aztari, Annisa Rosa Bima Firmantara, Bima Dini Julia Putri Elfis Suanto Hafshoh Halimatun Sakdiah, Halimatun Humaira, Hanifah Ibrahim, Puji Astuti Jamal Bake, Jamal Khairunnisak, Futri Maharani, Zulfa Nahor Murani Hutapea Niki Lauda S Lauda, Niki Lauda S Prastyo, Elli Rani Eka Saputri, Rani Eka Sahrun, Sahrun Sakur Sakur Sakur, Sakur Sehatta Saragih Silvi Nanda Situmorang, Ruth Sahana Syarifah Nur Siregar Titi Solfitri Widyastuti, Putri