General Chemistry Journal

Kelayakan Bahan Ajar Berbantuan Media Flipbook Pada Materi Struktur Atom SMA Fase F

2025-01-05T09:33:16-08:00

This study aims to test the feasibility of flipbook media-assisted atomic structure teaching materials for Phase F High School. Validation uses a research instrument in the form of an assessment questionnaire that includes format, content, language, practicality, and effectiveness, consisting of 14 criteria. Validation of teaching materials assisted by flipbook media was carried out by seven validators consisting of lecturers in the Department of Chemistry, FMIPAK, Manado State University. The results showed an average total validation (RTV) of 3.11. Based on Khabibah in Yamasari (2010), this teaching material is classified as valid.

Kelayakan Bahan Ajar Berbantuan Media Flipbook Pada Materi Stoikiometri Kimia SMA Fase F

2025-01-05T09:37:32-08:00

This research aims to test the feasibility of media-assisted Stoichiometry teaching materials flipbook for SMA Phase F. This research consists of three stages, namely creating, validating and improving media-assisted teaching materials flipbook. Validation uses a research instrument in the form of an assessment questionnaire which includes format, content, language, practicality and effectiveness, consisting of 14 criteria. Validation of media-assisted teaching materials flipbook carried out by three validators consisting of lecturers in the Chemistry Department, FMIPAK, Manado State University. The research results show an average total validation (RTV) of 3.38 this teaching material is classified as valid

Kelayakan Bahan Ajar Berbantuan Media Flipbook Pada Materi Ikatan Kimia SMA Fase F

2025-01-05T09:41:35-08:00

This study aims to test the feasibility of Flipbook media -assisted chemical bonding materials for Fase F. High School. The research method used is descriptive. This research consists of three stages, namely manufacturing, validation, and repairing teaching materials assisted by flipbook media. Validation uses a research instrument in the form of an assessment questionnaire that includes format, content, language, practicality, and effectiveness, which consists of 14 criteria. Validation of Flipbook media assisted teaching materials is carried out by five validators consisting of lecturers in the FMIPA-K Chemistry Department of Manado State University. The results showed the average total validation (RTV) of 3.56. Based on Khabibah in Yamasari (2010), this teaching material is classified as valid.

Penerapan Model Pembelajaran ECIRR Dengan Media LKPD Untuk Mereduksi Miskonsepsi Pada Materi Larutan Asam Basa Kelas XI SMA Negeri 4 Manado

2025-01-05T09:44:44-08:00

Misconceptions are a condition where students experience errors in understanding the concepts taught by experts. Students' misconceptions can be obtained through the learning methods used. This research aims to reduce misconceptions of class XI students at SMA Negeri 4 Manado regarding acid-base solution material using the ECIRR learning model with the help of LKPD media. The type of research used is descriptive research. The sample in this research was all students of class XI IPA 3, totaling 32 people. In this research, the data collection instrument was a multiple choice test with 12 questions along with the reasons according to the acid-base solution material. Data analysis in this research uses validity and reliability tests. From the research results, it was concluded that the percentage of the misconception category was reduced from 28.125% to 8.85%, then the percentage of the understanding category increased from 23.185% to 83.85%, and the percentage of the don't understand category experienced a reduction from 48.69% to 7.3%.

Pengembangan Instrumen Tes Diagnostik Five-Tier untuk Identifikasi Miskonsepsi Siswa pada Materi Asam Basa, Hidrolisis Garam, dan Larutan Penyangga di SMAN 1 Likupang

2025-01-15T00:05:49-08:00

The purpose of this research is to determine the feasibility of the Five Level Diagnostic Test Instrument, especially on acid-base material, salt hydrolysis and buffer solutions to identify students' misconceptions about this material. This research was conducted at SMAN 1 Likupang on class XI MIA 1 and XI MIA II students totaling 70 students. This research method uses the R&D method with the PLOMP model. The results of the validation of the questions by experts obtained a CVI value = 0.99 with the criteria "very suitable". Construct Validity with a person reliability value of 0.83 in the good category, item reliability of 0.77 sufficient criteria and person separation reliability of 3.35 good criteria and sufficient person separation criteria of 2.75. The results of reliability, distinguishing power and level of difficulty show good results. And the results of applying the instrument to each question show the highest student misconception profile in questions number 3, 6 and 8 with a percentage of 70% and the lowest misconception in question number 19 with a percentage of 16.66%. The subconcept that experienced the highest misconception was the theory of acids and bases and the strength of acids and bases, while the lowest subconcept was the concept of buffer solutions and the properties of buffer solutions.

Pengaruh Model Cooperative Project Based Learning Terhadap Hasil Belajar Siswa Pada Materi Teori Atom

2025-02-04T00:50:30-08:00

This study aims to improve student learning outcomes in atomic theory material through the application of cooperative project based learning learning models. The cooperative project-based learning model is learning that integrates project-based learning implemented with cooperative learning strategies. The research conducted was Classroom Action Research (PTK) which was conducted in 2 cycles, where each cycle consisted of planning, action, observation, and reflection stages. The research subjects were all students of class X-B at SMA Negeri 2 Tondano, with a total of 20 students consisting of 12 female students and 8 male students. Data collection techniques were carried out through observation and written tests. Cycle I, the percentage of classical mastery of students is 85%. Cycle II the percentage of students' mastery classically becomes 100%. There was an increase in individual learning outcomes, with 17 students who completed learning in cycle I to 20 students who completed learning in cycle II. The results showed that the cooperative learning model based on project learning on atomic theory material improved student learning outcomes.

Penggunaan Problem Based Learning Dengan Bantuan Algoritma Dalam Menyelesaikan Soal Konsep Mol Bagi Siswa SMA Negeri 2 Tondano

2025-02-19T23:29:26-08:00

The aim of this research is to find out whether there is an increase in learning outcomes before and after using Problem Based Learning model with the help of an algorithm in solving Mole Concept questions for students at SMA Negeri 2 Tondano. This research was conducted in class XI of SMA Negeri 2 Tondano in the 2023/2024 academic year with a total of 22 students. This research uses a quantitative method with a one group pretest posttest design. Data collection techniques performed using learning outcomes test where given pretest was given treatment and posttest after treatment in the form of model based basible learning with the help of algorithm. Based on the results of the hypothesis test using paired sample t-test tested ac2 = 21,81> ttable = 1.71, then H₀ was rejected and H₁ was accepted. Therefore it can be concluded that there are enhancement in learning outcomes before and after using Based Learning Problems with the help of algorithms in solving the problem of mole Concept for SMA Negeri 2 Tondano students