The Effect of Various Media Scaffolding on Increasing Understanding of Students' Geometry Concepts

Sugeng Sutiarso, Coesamin Coesamin, Nurhanurawati Nurhanurawati
2017 Journal on Mathematics Education  
This study is a quasi-experimental research with pretest-posttest control group design, which aims to determine (1) the tendency of students in using various media scaffolding based on gender, and (2) effect of media scaffolding on increasing understanding of students' geometry concepts. Media scaffolding used this study is chart, props, and visual. The population was the fifth grade students of State Elementary School I Gunung Terang (total 40 students), Bandar Lampung, Indonesia of the
more » ... nesia of the academic year 2015-2016. The sample was total sampling, respectively 20 students in the experimental class (with media scaffolding) and control class (without media scaffolding). Data were collected through observation, interview and test. Analysis of the observation and interviews data with descriptive statistics (percentage). and the test data was analyzed by (a) measuring the level of effectiveness on increasing understanding of students' geometry concepts with formula of Hake's Normalized Gain (g) and its interpretation, and (b) examine of hypotesis on level of effectiveness with t-test. The results of research showed that (1) the tendency of male students using the media scaffolding props, and female students using scaffolding media chart, and (2) effect of media scaffolding on increasing understanding of students' geometry concepts is effective enough. Abstrak Penelitian ini merupakan penelitian eksperimen semu dengan desain kelompok kontrol pretes-postes, yang bertujuan untuk menentukan (1) kecenderungan siswa dalam menggunakan media scaffolding berdasarkan jenis kelamin, dan (2) pengaruh media scaffolding terhadap peningkatan pemahaman konsep geometri siswa. Media scaffolding yang digunakan dalam penelitian adalah media chart, alat peraga, dan visual. Populasi penelitian adalah siswa kelas 5 SDN 1 Gunung Terang Bandar Lampung (jumlah seluruhnya 40 siswa). Sampel penelitian diambil dengan teknik sampling jenuh, terdiri dari 20 siswa sebagai kelas eksperimen (dengan media scaffolding) dan 20 siswa sebagai kelas kontrol (tanpa media scaffolding). Data penelitian dikumpulkan melalui pengamatan, wawancara, dan tes. Analisis data pengamatan dan wawancara dilakukan dengan statitika deskripstif (persentase), dan data tes dianalisis melalui cara (a) mengukur tingkat efektivitas peningkatan pemahaman konsep geometri siswa dengan rumus gain ternormalisasi Hake serta interpretasinya, dan (b) uji hipotesis tingkat efektivitas dengan uji-t. Hasil penelitian menunjukkan bahwa (1) kecenderungan siswa lakilaki menggunakan media scaffolding alat peraga, dan siswa perempuan menggunakan media chart, dan (2) pengaruh media scaffolding terhadap pemahaman konsepgeometri siswa adalah cukup efektif.
doi:10.22342/jme.9.1.4291.95-102 fatcat:hemgcypn6zbqtlrndicyi63vzy