E-module in producing briquettes from melinjo (Gnetum gnemon) shell with various particle sizes and binder concentrations for vocational school students

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Asep Bayu Dani Nandiyanto, Enjang Rohman, Mustika Nuramalia Handayani, Silmi Ridwan Putri

2020 Journal of Engineering Education Transformations Vol. 34 Issue Special Issue Article Cited by 7 SDG 4SDG 14 Quartile

Abstract

The purpose of the research is to study the effect of the use of videos and e-module to understand the production of briquettes from melinjo (Gnetum gnemon) shell with various particle sizes and binder concentrations for vocational school students. The production of melinjo skin briquettes is conducted using two factors of the completely randomized design (particle size and concentration of tapioca). The study of the briquettes characteristics conducted is compressed density, relaxed density, relaxation ratio, percentage of moisture content, burning rate, specific fuel consumption, percentage of resistance index, and percentage of durability index. The learning process used a quasi-experimental method (One-group pretest-posttest). The learning is performed in two sessions by using video and e-module. Evaluation of student learning outcomes conducted through pretest, after video posttest, and after e-module posttest. Based on the analysis of variation, the concentration of tapioca, and the size of the particle have a significant effect on the briquettes’ characteristics. The t-test results of the pretest, after video posttest, and after e-module posttest indicated that the average students’ knowledge value increases and varies significantly on each test. This e-module can also be used to improve vocational high school students' knowledge of melinjo skin briquettes. © 2020, Rajarambapu Institute Of Technology. All rights reserved.

Affiliations

Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi No. 229, Bandung, Indonesia

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