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Journal : Jurnal Daya Matematis

The Effect of the Problem-Based Learning Model on Mathematical Communication Skills and Learning Motivation of Eighth-Grade Students at MTs Negeri 2 Medan Pakpahan, Aida Fitri Harun; Surya, Edy; Khairani, Nerli
Daya Matematis: Jurnal Inovasi Pendidikan Matematika Vol 13, No 2 (2025): Juli
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jdm.v13i2.74604

Abstract

The purpose of this study is to determine: (1) Whether there is an effect of the Problem-Based Learning model on students' mathematical communication skills. (2) Whether there is an interaction between the Problem-Based Learning model and students' initial mathematical ability (KAM) on their mathematical communication skills. (3) Whether there is an effect of the Problem-Based Learning model on students' learning motivation. (4) Whether there is an interaction between the Problem-Based Learning model and students' initial mathematical ability (KAM) on their learning motivation. This study is a quasi-experimental design. The population in this study was all students at MTs Negeri 2 Medan. Then, two classes were randomly selected, class VIII-D (30 students) and class VIII-E (30 students). The experimental class was given the Problem-Based Learning model treatment, and the control class was given the usual learning treatment. The instruments used consisted of: (1) a mathematical communication ability test, and (2) a student learning motivation questionnaire. These instruments were found to meet validity requirements, as well as reliability coefficients for mathematical communication ability and the learning motivation questionnaire. Data analysis was conducted using a two-way ANOVA. The results of the study indicate that (1) There is an effect of the Problem-Based Learning model on students' mathematical communication ability. (2) There is an interaction between the learning model and initial mathematical ability on students' mathematical communication skills. (3) There is an effect of the Problem-Based Learning model on students' learning motivation. (4) There is an interaction between the learning model and initial mathematical ability on students' learning motivation.
Developing a Drill-and-Practice-Based Scratching Learning Media to Improve Mathematical Problem-Solving Skills and Students' Mathematics Learning Motivation Junior High School 2, Tebing Tinggi City Utari, Kania; Rajagukguk, Waminton; Surya, Edy
Daya Matematis: Jurnal Inovasi Pendidikan Matematika Vol 13, No 3 (2025): December
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jdm.v13i3.78571

Abstract

Students should be able to answer real-life math problems; therefore, mathematical problem-solving is crucial. Math problem-solving is improved by computer media. Educational media that meets students' needs motivates and inspires them, enhancing learning outcomes. Students' quantitative problem-solving skills will improve math learning results. Scratch is a computer-based learning tool that improves learning. The goal of this research is to use Scratch as a learning medium to improve students' mathematical problem-solving skills and motivation to learn mathematics. SMP Negeri 2 Kota Tebing Tinggi 7th graders completed this investigation in 2024/2025. This development research produced a valid, practical, and successful drill-and-practice-based visual learning medium to improve students' problem-solving and learning motivation. Media validity averaged 3.40, material validity 3.60, and linguistic validity 3.79. Teacher questionnaire scores averaged 3.67, while student questionnaire scores averaged 3.13 in the "Interested" category. The average learning implementation score rose to 3.25 in the second trial. Improved mathematical problem-solving and motivation were "moderate."
Co-Authors .Riadi, Riadi Amin Fauzi, Kms. Muhammad Amry, Zul Anggili Pratama Arisha, Dian Arnita Arnita Asmin Asmin, Asmin Asrul Karim, Asrul Darhim Darhim Dian Armanto Dongoran, Jhonas Edi Syahputra Efendi, Ilham Eka Margareta Sinaga ELVI MAILANI ELVI MAILANI EVA FARIDAH Eva Faridah, Faridah Fachrurazi Fadilah, Novia Fahrur Rozi Fairus, Fairus Fasti Rola Feria Andriana Putri, Feria Andriana FKIP, edumatica Gultom, Rina Gebryella Gultom, Rosiana Claudia Br Happy Lumbantobing, Happy Haqiki Wulandari, Dessy Harahap, Elvira Riska Hasibuan, Yulia Rinanda Hayati, Nina Hayati, Rahmi Hutasuhut, Addiestya Rosa Hutasuhut, Riska Fadhilah Jozua Sabandar Juwita Tindaon, Juwita Khairani, Nerli Linayati Lestari, Linayati Liza Fitria, Liza Maisa, Husnul Marah Doly Nasution Martua Manullang Maythree, Chelsea Milda Rizky Novriani, Milda Rizky Molliq Rangkuti, Yullita Mukhtar Mukhtar Mulyono Mulyono Nailul Himmi Hasibuan, Nailul Himmi Nainggolan, Anri Parsaulian Nasution, Irma Yani Lidia Nenta Dumalia Siregar, Nenta Dumalia Novita Sari Nst, Mas Berlian Nuraina, Nuraina Nurdin Bukit Pakpahan, Aida Fitri Harun Poppy Amalia Purba, Glory Indira D. Putri, Retno Sulistiana Anzani Rinanda, Yulia Rizki Maulida, Rizki Rohantizani, Rohantizani Saiman Saiman Sari, Riezky Purnama Siahaan, Asrifah Simanjuntak, Nadya Gracella Sinaga, Dewi Lestari Siregar, Sry Laila Angelina Siti Habsari Pratiwi, Siti Sutrisno, Imam Hadi Teti Khairani Nasution, Teti Khairani Utari, Kania Waminton Rajagukguk Yaya S. Kusumah Yessi Kartika Yohana Situmorang, Despi