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All Journal Fullerene Journal of Chemistry SOSCIED Oxygenius Journal Of Chemistry Education CHEDS: Journal of Chemistry, Education, and Science
Jenny Kumajas
Universitas Negeri Manado
Biochemistry, Genetics & Molecular Biology Chemistry Education Materials Science & Nanotechnology Social Sciences

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Journal : Oxygenius Journal Of Chemistry Education

 1 
Penggunaan Media Video dan Powerpoint Pada Mata Pelajaran Kimia Materi Larutan Penyangga Dalam Pembelajaran Daring Ainurridha Musafir; Ardi Kapahang; Jenny Kumajas
Oxygenius Journal Of Chemistry Education Vol 3 No 2 (2021): 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.v3i2.297

Abstract

The purpose of this research to see is there are differences in student chemistry learning outcomes on buffer solution material on the use of video media with PowerPoint in online learning. The design used in this research is Pretest-Posttest Control Group Design. This research was conducted at SMA N 1 Kotamobagu with class XI MIA A as experimental class 1 (video media) and class XI MIA B (media PowerPoint) as experimental class 2. Normality testing using the Liliefors test showed that the data for both classes were normally distributed, and homogeneity testing using the similarity test of variance showed both classes were homogeneous. Hypothesis testing using two-way Independent Sample T-test with acceptance criteria H0 is -ttable<tcount<+ttable. It is obtained that tcount = -2.09 and ttable = 1.68 which means tcount is in the rejection region of H0, so hypothesis H0 is rejected and H1 is accepted. Therefore, it can be concluded that there are differences in student learning outcomes when using video media using PowerPoint media.
Pembelajaran Kooperatif Tipe Game Tournament Pada Materi Ikatan Kimia di Kelas X IPA SMA Negeri 1 Kotamobagu Eka Putra Mamangkai; Meytij Rampe; Jenny Kumajas
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 (478.717 KB) | DOI: 10.37033/ojce.v1i2.91

Abstract

Tujuan penelitian ini adalah untuk mengetahui perbedaan hasil belajar siswa yang diajarkan menggunakan metode pembelajaran Kooperatif Tipe Team Games Tournament pada materi ikatan kimia kelas X Di SMA Negeri 1 Kotamobagu. Penelitian ini menggunakan metode eksperimen dan di peroleh sampel yaitu kelas X IPA A sebagai kelas eksperimen dan kelas X IPA B sebagai kelas kontrol. Proses pengumpulan data dengan memberikan tes kepada siswa di akhir pembelajaran.Hasil penelitian menunjukan bahwa rata-rata hasil belajar kelas eksperimen lebih tinggi dari kelas kontrol.berdasarkan data yang di analisis menggunakan uji-t untuk menguji hipotesis penelitian dan diperoleh thitung 8,95 > ttabel 2.059, sehingga dapat disimpulkan terdapat pengaruh yang signifikan pada penggunaan metode pembelajaran kooperatif Tipe Team Games Tournament terhadap hasil belajar pada materi ikatan kimia
Identifikasi struktur kognitif siswa dengan menggunakan peta konsep pada larutan asam-basa Bela Ganda; John Z Lombok; Jenny Kumajas
Oxygenius Journal Of Chemistry Education Vol 1 No 1 (2019): Oxygenius : Journal of Chemistry Education
Publisher : Chemistry Department, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (181.557 KB) | DOI: 10.37033/ojce.v1i1.72

Abstract

Every student has different cognitive structures, but few teachers realize these differences. The purpose of this research is to identify students’ cognitive structures, which comprise of several aspects such as content, students’ prior knowledge, new knowledge and misconception when they learn from a concept map. The method used is descriptive research, conducted on 18 students at a senior high school in Manado City. The students’ cognitive structures are revealed using questions from concept map about acid-base solution. The cognitive structures are identified based on the scores obtained by each students from the concept map questions. The result shows three cognitive categories of students on the content aspect, namely poor, good, and excellent, and three categories of students’ cognitive structures, which are students’ prior knowledge, new knowledge and misconception. In general, the students’cognitives structure are categorized as good.
Penerapan Model Pembelajaran Tuntas (Mastery Learning) Pada Materi Konsep Mol di SMA Negeri 1 Remboken Fritson Linggot; Meytij Rampe; Jenny Kumajas
Oxygenius Journal Of Chemistry Education Vol 4 No 1 (2022): 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.v4i1.318

Abstract

This research is an experimental research with Mastery Learning model. This study aims to determine the effect of the Mastery Learning model on student learning outcomes on the mole concept material. This research was conducted in class X SMA Negeri 1 Remboken with a sample of 57 people. The research design used is the post-test-only control group design experimental method. The experimental class uses a complete learning model and the control class uses a conventional learning model. Analysis of hypothesis testing using t-test with a significant level = 0.05, because with a two-way test then the value of a/2 = 0.025. The test results obtained show that the results of t arithmetic > t table or 9.02 > 2.05, thus H0 is rejected and H1 is accepted, this indicates that there is a significant difference between the average value (post-test) of the experimental group and the experimental group. control group experiment. So it can be concluded that there is a difference in the average learning outcomes of students who are taught the mastery learning model with the learning outcomes of students who are taught conventional learning on the mole concept material.
Pengaruh Model Multiple Inttelligence Terhadap Hasil Belajar Siswa Pada Materi Sistem Koloid kelas XI IPA SMA Negeri 2 Tondano novinus rerung; Marlina Karundeng; jenny kumajas
Oxygenius: Journal Of Chemistry Education Vol 4 No 2 (2022): 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.v4i2.506

Abstract

A B S T R A C TThis study aims to determine the effect of the Multiple Intelligence model on chemistry learning outcomes student in colloidal system material. This research was conducted from May to June for the 2021/2022 school year, students of class XI IPA at SMA Negeri 2 Tondano. The sampling technique was carried out using random sampling. The samples used in this study were 22 students of class XI IPA 1 as the experimental class and 22 students in class XI IPA 2 as the control class. The research design used was the Pretest-Postest Control Group Design. Research data on learning outcomes were measured after treatment in the experimental and control classes, then data analysis was carried out using Analysis of Covariance (ANCOVA) to test the formulation of hypotheses with the testing criteria, namely reject Ho if Fcount>Ftable. The research results obtained for learning outcomes are Fcount>Ftable, at the real level α=0.05 and db=42, namely Fcount= 36.378>Ftable=1.671, so Ho is rejected and H1 is accepted. Based on the data analysis, it can be concluded that the use of the Multiple Intelligence model has an effect on chemistry learning outcomes student’s.
Efektivitas Tes Diagnosis Multiple Intellegence Terhadap Hasil Belajar Siswa Pada Materi Ikatan Kimia Di SMA Negeri 1 Tondano Astri Togatorop; Jenny Kumajas
Oxygenius: Journal Of Chemistry Education Vol 5 No 1 (2023): 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.v5i1.523

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui efektivitas tes diagnosis multiple intelligence terhadap hasil belajar siswa pada materi ikatan kimia di SMA Negeri 1 Tondano. Penelitian ini dilakukan pada tahun ajaran 2022. Metode yang digunakan adalah eksperimen dengan desain one-group pretest posttest design. Teknik pengumpulan data diperoleh melalui instrumen tes hasil belajar sebanyak 36 butir soal pilihan berganda yang kemudian dianalisis menggunakan uji N-gain. Hasil penelitian menunjukkan bahwa nilai rata-rata N-gain untuk kelas eksperimen adalah sebesar 67% termasuk dalam kategori cukup efektif. Hasil perhitungan menunjukkan bahwa, rata-rata skor hasil belajar siswa untuk kelas eksperimen pretest 54.9483 dan posttest 85.3989. hasil pengujian paired sample t-test hasil belajar siswa diperoleh nilai signifikannya yaitu 0,000 < 0,05 maka H0 ditolak atau H1 diterima Ini menunjukkan bahwa pembelajaran multiple Intelligence efektif untuk meningkatkan hasil belajar siswa.
Penerapan Model Project Based Learning Pada Materi Ikatan Kimia Untuk Meningkatkan Hasil Belajar Siswa Kelas X di SMA Negeri 1 Likupang Andries, Marcella; Krisen, Sofia; Kumajas, Jenny
Oxygenius: Journal Of Chemistry Education Vol 6 No 2 (2024): 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.v6i2.717

Abstract

This research is classroom action research which aims to improve student learning outcomes in chemical bonding material through the application of the project based learning model. There are several things that underlie this research, namely the low interest in student learning in chemistry subjects which then makes student learning outcomes unsatisfactory. The research carried out is classroom action research (PTK) which takes place in two cycles, in cycle I it is held three meetings and in cycle II it is held two meetings. Each cycle in this research consists of a planning stage. implementation, observation and reflexology Data collection techniques were carried out using observation sheets and written tests. Based on the research results, it was found that the project based learning model could improve student learning outcomes. This can be seen from the percentage of student learning outcomes which increased from 60% in cycle I which then increased to 96% in cycle II.
Penerapan Model Pembelajaran Project Based Learning (PjBL) Pada Materi Hukum-Hukum Dasar Kimia di Kelas XA SMA Negeri 2 Langowan Boinsera, Marten Steven; Karundeng, Marlina; Kumajas, Jenny
Oxygenius: Journal Of Chemistry Education Vol 6 No 1 (2024): 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.v6i1.527

Abstract

Penelitian ini bertujuan untuk meningkatkan hasil belajar siswa dengan menerapkan model pembelajaran project based learning pada materi hukum-hukum dasar kimia di kelas XA SMA Negeri 2 Langowan. Metode Penelitian yang digunakan adalah deskriptif kualitatif. Subjek dalam penelitian adalah siswa kelas XA SMA Negeri 2 Langowan tahun pelajaran 2022/2023 semester genap berjumlah 24 siswa. Teknik pengumpulan data terdiri atas observasi, dokumentasi dan instrumen tes. Teknik analisis data menggunakan data hasil tes dan data observasi kegiatan pembelajaran. Hasil penelitian, ketuntasan hasil belajar siswa yang memperoleh nilai ≥75 sebesar 91,667% dengan kategori tinggi, sedangkan hasil observasi aktivitas siswa memperoleh nilai ≥80 dengan kategori sangat baik. Berdasarkan hasil penelitian tersebut disimpulkan bahwa penerapan model Project Based Learning pada materi hukum-hukum dasar kimia dapat meningkatkan hasil belajar siswa.
Co-Authors Ainurridha Musafir Aisyiah Restutiningsih Putri Utami Andries, Marcella Ardi Kapahang Astri Togatorop Bela Ganda Berutu, Tania Fransiska Boinsera, Marten Steven Datang, Priskila Elin Dewa Anom Dian H O Howan Eka Putra Mamangkai Fritson Linggot John Z Lombok Johny Zeth Lombok Marlina Karundeng Meytij Jeanne Rampe Mustapa Mustapa novinus rerung Rauhe, Gilliant Meiralda Rivaldo Lee Mogot Sidhabukke, Indah Utari Sofia Satriani Krisen Tengker, Soenandar Millian Tompunu