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All Journal Oxygenius Journal Of Chemistry Education
Hardin Foster Rares
Universitas Negeri Manado
Chemistry Education

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Penggunaan Three-Tier Diagnostic Test Untuk Pemetaan Tingkat Penguasaan Elektrokimia Mahasiswa Kimia Semester II Elvian Anggelina Soru; Hardin Foster Rares; Joice Caroles
Oxygenius Journal Of Chemistry Education Vol 2 No 1 (2020): Oxygenius : Journal of Chemistry Education
Publisher : Chemistry Department, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/ojce.v2i1.132

Abstract

The purpose of this study was to determine the level of understanding of concept maps of semester II chemistry students using a three-tier diagnostic test on electrochemical subjects with multimedia-based learning. The research was carried out in the Department of Chemistry, FMIPA, UNIMA in the even semester of the 2018/2019 school year. The research method used is One-shot Case, with a sample of the research that is a class of chemistry classes for a certain year as many as 12 people. Multimedia instruments are made by utilizing animation and video from the internet which is packaged in Ms. Power point, and the electrochemical three-tier diagnostic test instrument is made according to the subject being taught. Then the test instrument was validated and 15 questions were produced. It was found the map data on the level of understanding of electrochemical concepts namely the average number of students who understood the concept by 41.6%, the average number of students experiencing misconceptions both misconceptions (+), misconceptions (-) and misconceptions by 30.033%, average number students do not understand the concept as much as 11.1%, there are 8.3% students who are not sure of the concept they have, and 8.3% there are students who do not understand the concept of electrochemistry. Thus, it was concluded that a three-tier electrochemical diagnostic test was able to reveal a map of students' level of understanding of the chosen topic
Pengaruh Metode Pembelajaran Inquiry Berbasis Visualisasi Materi Larutan Elektrolit dan Nonelektrolit di Kelas X IPA SMA Negeri 1 Kawangkoan Reynaldi Assa; Wilson Alexander Rombang; Hardin Foster Rares
Oxygenius Journal Of Chemistry Education Vol 1 No 2 (2019): Oxygenius : Journal of Chemistry Education
Publisher : Chemistry Department, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (509.512 KB) | DOI: 10.37033/ojce.v1i2.80

Abstract

The purpose of this study is to examine the effect of visualization-based inquiry learning methods on student learning outcomes in electrolyte and non-electrolyte solution material. This research was conducted in Kawangkoan 1 Public High School, in the even semester X IPA students, 2018/2019 academic year. Class X IPA students 1 (n = 31) as the experimental class and class X IPA 2 (n = 32) as the control class. The test used in this study statistical t test with significance level α = 0.05 with the testing criteriat> ttable then H0 is rejected and H1 accepted. The results obtained in this test obtained tcount 5.25> ttable 1.670. This test is done not to improve student learning outcomes beyond the minimum standard of completeness criteria in school but this testing is only to see the effect of visualization based inquiry learning methods on student learning outcomes. Based on the results obtained it can be concluded that there are differences in student learning outcomes applied with conventional learning models (control class) and visualization based inquiry learning methods (experimental class)
Co-Authors Elvian Anggelina Soru Joice Dorsila Susana Caroles Reynaldi Assa Wilson Alexander Rombang