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Nova Christina Dewi
Pendidikan Matematika, FKIP Universitas Graha Nusantara Padang Sidimpuan
Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Social Sciences Other

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Journal : journal education innovation

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UPAYA MENINGKATKAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA DENGAN MODEL PEMBELAJARAN KOOPERATIF TIPE THINK-TALK-WRITE KELAS VIII-A SMP Negeri 1PADANGSIDIMPUAN Biolisa Panca; Susi Sulastri; Nova Christina Dewi
Journal Education Innovation (JEI) Vol. 3 No. 1 (2025): Januari 2025
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/63tp3445

Abstract

The purpose of this study was to determine the improvement of students' mathematical communication skills with the efforts of the Think-Talk-Write Type Cooperative Learning Model on SPLDV material in class VIII SMP Negeri 1 Padangsidimpuan. Study Year 2023-2024. The subjects in this study were Class VIII-A students totaling 24 students. The object of this research is the mathematical communication ability of students through the Think-Talk-Write type cooperative learning model on SPLDV material in class VIII-A of SMP Negeri 1 Padangsidimpuan. This type of research is Classroom Action Research which consists of two cycles. Data collection instruments are student mathematical communication ability tests, observation sheets. With the application of cooperative learning model type think-talk-write on the material of two-variable linear equation system in class VIII SMP Negeri 1 Padangsidimpuan can improve students' mathematical communication skills. This can be seen from the increase in the average value of the initial test is 56.67%, the average value of student communication ability test I is 70.63 and in cycle II the average value of student mathematical communication ability test II is 80.20. While the results of teacher observations in learning I cycle I 2.25 and in learning II 2.63 with an average of 2.44 with a good category. While the teacher observation in learning I cycle II 3.38 and in learning II 3.62 with the average observation of cycle II is 3.5 with a very good category.
PENERAPAN MODEL PEMBELAJARAN SELF ORGANIZED LEARNING ENVIRONMENTS (SOLE) UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MATEMATIKA SISWA KELAS VII-2AN KEMAMPUAN BERPIKIR KRITIS MATEMATIKA SISWA KELAS VII-2 Simamora, Joice Ronitua; Yuni Rhamayani; Nova Christina Dewi
Journal Education Innovation (JEI) Vol. 3 No. 1 (2025): Januari 2025
Publisher : Yayasan Perguruan Kampus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65474/2dhstf23

Abstract

This type of research is Classroom Action Research which aims to improve students' critical thinking skills in mathematics through the Self Organized Learning Environments (SOLE) learning model. The subjects in this study were students of class VII 2 SMP Negeri 5 Padangsidimpuan. The object in this study is the application of the Self Organized Learning Environments (SOLE) learning model to improve the critical thinking ability of mathematics students in class VII 2 of SMP Negeri 5 Padangsidimpuan in the 2023/2024 academic year. In terms of the level of students' mathematical critical thinking ability, after the implementation of PTK actions, it can be seen from the students' mathematical critical thinking ability test with a percentage of assessment in cycle I 66.67% with the category “Fair” and the percentage of cycle II assessment 85.18% with the category “Good”. Based on the observation of student activity in cycle I, it was obtained that the level of student activity was 67.42% in the “Fair” category and in cycle II there was an increase in student activity to 83.91% in the “Good” category. The conclusions in this study are (1) the use of the Self Organized Learning Environments (SOLE) learning model can improve students' critical thinking skills in mathematics on the material of triangular flat shapes in class VII-2; (2) The use of the Self Organized Learning Environments (SOLE) learning model can increase student activity on the material of triangular flat shapes in class VII-2.
Co-Authors Ade Rizky Nasution Adek Nilasari Harahap Biolisa Panca Candra Irawan Eka Retno Wulandari Elnila Caniago Eni Sumanti Nasution Eni Sumanti Nasution Fita Delia Gultom Haritsah Hammamah Harahap Hasibuan, Siti Gabena Indah Purnama Sari KHOIRUNNISA Melida Warni Nasution Mhd. Syukri Harisandi Mohd.Arifin Lubis Nenni Herawati Siregar Nurdalilah Nurdalilah Puspa Riani Nasution Puspa Riani Nasution Ramita Putri Rini Kesuma Siregar Rizki Fadila Rosni Harahap Sakinah Harahap Sapriani Lubis Simamora, Joice Ronitua Siti Gabena Hasibuan Siti Maryam Pane Sri Utami kholilla Mora Siregar Susi Sulastri Susi Sulastri Lubis Susi Sulastri Lubis Wulan Eka Putri Siregar Wulan Eka Putri Siregar Yuni Rhamayani Yuni Rhamayanti Zalmi Nauli Harahap