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All Journal SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Lencana: Jurnal Inovasi Ilmu Pendidikan
Mutiara Lestari Aritonang
Universitas Sari Mutiara Indonesia
Arts Humanities Education Languange, Linguistic, Communication & Media Other

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PENGARUH MODEL PEMBELAJARAN GROUP INVESTIGATION (GI) TERHADAP HASIL BELAJAR IPAS PESERTA DIDIK KELAS IV SEKOLAH DASAR Nanda Ayu Setiawati; Putri Roka Ismail; Mutiara Lestari Aritonang
SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED Vol. 16 No. 1 (2026): SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/sejpgsd.v16i1.73718

Abstract

This study aims to determine the effect of the Group Investigation (GI) learning model on the learning outcomes of fourth-grade students in the subject of Cultural Diversity in My Country at SDN 064985 Medan Helvetia in the 2024/2025 Academic Year. The type of research used is a quasi-experimental design with a nonequivalent control group design. The study population was all fourth-grade students consisting of two classes with a total of 44 students. The research sample used a saturated sampling technique, namely class IV-A as the experimental class totaling 21 students and class IV-B as the control class totaling 23 students. The research instruments were multiple-choice tests, observation, and documentation. Data were analyzed using normality tests, homogeneity tests, and hypothesis tests. The results showed that the average pretest score of the experimental class was 57.62 and the control class was 50.65. After being given treatment using the Group Investigation model, the average posttest of the experimental class increased to 83.33, while the control class was 77.39. The results of the analysis show that the Group Investigation learning model has a significant effect on the science learning outcomes of grade IV students at SDN 064985 Medan Helvetia.
Penerapan Model Think Talk Write untuk Meningkatkan Hasil Belajar Matematika Siswa SD Siti Zahra; Prissy Patrisia Gurning; Mutiara Lestari Aritonang; Alfred Kristian Gulo; Taruli Marito Silalahi
Lencana: Jurnal Inovasi Ilmu Pendidikan Vol. 3 No. 1 (2025): Januari : Jurnal Inovasi Ilmu Pendidikan
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/lencana.v3i1.4574

Abstract

The purpose of this article review is to evaluate the effectiveness of using Think Talk Write (TTW) learning modeling to improve elementary school students' mathematics learning outcomes. The TTW model involves a structured process of thinking, speaking, and writing to help students understand mathematical concepts better. The study method used is library research, where the data sources obtained are reviewed through books, scientific articles, scientific journals and other relevant written information. Data collection techniques are carried out through library research, focusing on literature related to the application of the TTW model in mathematics learning. The data obtained are analyzed using descriptive methods, which include tracing, reviewing and verifying in order to determine conclusions. The study data produced shows that the application of the TTW model can improve students' understanding and mathematical skills, and provide a clear picture of the effectiveness of this model in the context of mathematics education in elementary schools.
Co-Authors Alfred Kristian Gulo Nanda Ayu Setiawati Prissy Patrisia Gurning Putri Roka Ismail Siti Zahra Taruli Marito Silalahi