Sundari, Resti
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Development of Mixed Learning Media (MLM) Assisted by Student Worksheet on The Topic of The Effect of Molarity on Light Index Baifeto, Ekri Pranata Ferdinand; Aulia, Maghfira; Hasbi, Julia Edwina; Sundari, Resti; Rusdiana, Dadi
Indonesian Journal of Science and Mathematics Education Vol. 4 No. 2 (2021): Indonesian Journal of Science and Mathematics Education
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijsme.v4i2.9124

Abstract

The purpose of this study was to develop mixed learning media (MLM) and test the feasibility of learning media. The study was conducted using the research and development method which refers to the ADDIE model with four main steps, analysis, design, development, and implementation. The instrument used is a questionnaire consisting of a learning media questionnaire, student worksheet questionnaire, and student response questionnaire. Respondents in this study were 4 eleventh grade students. The results showed the feasibility of learning media with a score of 92.5%; in the aspect of serving by 93.3%; on the aspect of the feasibility of the content of 91.6%; on the language aspect by 91.5%; 95.8% on the concept and task aspects. Based on the results of the validation score, the student worksheet was declared very valid. Based on the results of student questionnaire data, an average score of 94.9%. The results showed that the learning media were valid and practical to use for virtual experiments.
Direct Current Electric Circuit-Visualization Skills Instrument Test (DCEC-ViSIT) to Measure High School Student’s Visualization Skills Sundari, Resti; Suhandi, Andi; Samsudin, Achmad
Jurnal Pendidikan MIPA Vol 24, No 1 (2023): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Abstract

This research aims to develop instrument test visualization skills on direct current electric circuits. The research method used is the development of a 4D model consisting of defining, designing, developing, and disseminating. The participants in this research consisted of 33 high school students in West Java who were randomly selected. The first analysis is an analysis of the results of expert validation using CVR, which is considered valid. The second analysis is the Rasch analysis, which obtained raw variance data with special interpretation and declared the questions valid. The third stage is the analysis of the parameters of the items included in the interpretation of "very appropriate" and "appropriate". The fourth stage of the reliability analysis used Rasch analysis, which showed that overall visualization skills items were reliable with a Cronbach Alpha of 0.71. But the consistency of the answers from the respondents is weak. Students' visualization skills need to be improved through models, methods, and visual media that support visualization skills.Keywords: visualization skills, direct current electrical circuits, 4D model, Rasch analysis.DOI: http://dx.doi.org/10.23960/jpmipa/v24i1.pp84-97