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All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT Pendas : Jurnah Ilmiah Pendidikan Dasar
Glory Indira Diana Purba
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Arts Humanities Education Languange, Linguistic, Communication & Media Social Sciences Other

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PENERAPAN STRATEGI PEMBELAJARAN KOOPERATIF TIPE STAD YANG BERORIENTASIKAN MASALAHUNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA Glory Indira Diana Purba
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 19, No 72 (2013)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v19i72.4730

Abstract

Pembelajaran matematika beserta sistem evaluasi selama ini kurang memberikan kesempatan bagisiswa untuk memunculkan ide atau gagasan selama siswa belajar matematika. Akibatnya siswa menjadipasif selama proses pembelajaran dan kurang meningkatkan kemampuan pemecahan masalah siswadalam menyelesaikan soal-soal matematika. Untuk itu guru hendaknya dapat memilih dan menerapkansuatu strategi pembelajaran yang efektif untuk membuat siswa aktif selama belajar Penelitian ini adalahpenelitian eksperimen yang bertujuan untuk menelaah adanya perbedaan pemecahan masalahmatematika siswa yang diajar dengan pembelajaran kooperatif tipe STAD (Student Teams AchievementDivisions) yang  berorientasikan masalah dengan siswa yang diajar dengan pembelajaran ekspositori,mendeskripsikan tentang aktifitas siswa selama proses pembelajaran dengan menggunakanpembelajaran kooperatif tipe STAD yang berorientasikan masalah.
PENGEMBANGAN MEDIA BERBASIS RPG MAKER MV UNTUK MENINGKATKAN KEMAMPUAN PEMECAHAN MASALAH SISWA KELAS VIII SMP Esra Roida Handayani Marpaung; Glory Indira Diana Purba
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 01 (2026): Volume 11 No. 01 Maret 2026 Publish
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i01.40571

Abstract

The study employed the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The research subjects consisted of 35 Grade VIII students at SMP Negeri 45 Batam. The results indicate that: (1) The average validity scores obtained from material experts (92.86%) and media experts (88.75%) fall within the very valid category. (2) The RPG Maker MV–assisted learning media met the criteria for effectiveness, as evidenced by the classical mastery requirement stipulating that at least 85% of students must achieve a minimum score of 75 based on the KKM standard. In this study, 30 students (85.7%) achieved the minimum required score. (3) Based on teacher and student response questionnaires, the developed media fulfilled the criteria for high practicality, with average percentages of 98.3% and 86.35%, respectively. (4) Students’ mathematical problem-solving abilities showed substantial improvement, with the average score increasing from 32.86 on the pretest to 87.5 on the posttest. An N-Gain value of 0.84 indicates that the improvement lies within the high category.
PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK DIGITAL BERBASIS KONTEKSTUAL UNTUK MENINGKATKAN KEMAMPUAN KOMUNIKASI MATEMATIS PESERTA DIDIK Aelfi Situmorang; Glory Indira Diana Purba
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 No. 2, Juni 2026 Publish
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.45788

Abstract

This study aims to (1) determine the quality of context-based digital worksheets in improving students’ mathematical communication skills; (2) examine the response process of students with mathematical communication skills who learn using a contextual model; (3) determine the improvement in students’ mathematical communication skills through contextual learning using the developed digital worksheets. The research method used in this study is the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The subjects of this study were 11th-grade students in the English and Biology class at SMA Negeri 1 Percut Sei Tuan, and the research object was the context-based digital worksheet designed to improve students’ mathematical communication skills. The instruments used in this study were questionnaires and tests. The results of the study indicate that: (1) The quality of the context-based digital worksheets developed to improve students’ mathematical communication skills on the topic of functions has met the criteria for validity, practicality, and effectiveness. The developed digital worksheets received a score of 3.96 from the content expert and 3.8 from the media expert; both scores fall within the range of 3.4 < V ≤ 4.2, so both are categorized as valid. The digital worksheets developed scored 92.63% for teacher practicality and 88.8% for student practicality; both scores fall within the range (80 < Vp ≤ 100), so both are categorized as highly practical; The developed digital worksheets met the criteria for effectiveness based on (a) student learning mastery, with 26 students achieving mastery or a score of 75 and a class-wide learning mastery rate of 86.66%; (b) the achievement of individual learning indicators/objectives at 78.44%; (c) positive responses from students at 92.67% in the positive category. (2) An increase in mathematical communication skills from an average pretest score of 26.39 to 63.39 on the posttest. Communication ability indicators also increased: the first indicator rose by 59.72%, the second by 42.5%, and the third by 49.17%. N-Gain analysis showed an increase of 0.71, which is categorized as high.
Co-Authors Aelfi Situmorang Esra Roida Handayani Marpaung