Abstract. The research aims to get answers to whether chemistry learning with computer-based games as learning media can create fun learning (edutainment). The study was conducted on students in three high schools in chemistry learning according to plan, during the learning activities were observed by students, before and after learning the learning outcomes tests and student questionnaires were conducted. The results showed that learning activities were 90.4% to 92.0% as expected, 90% to 100% of students stated that learning was fun with games as learning media, and learning outcomes had achieved 93% to 100% classical completeness. These results indicate that the use of computer-propelled games as chemical learning media can create chemical learning that pleases students and can be used by teachers as an alternative to edutainment chemistry learning

The study aimed to examine the effectiveness of Socioscientific Issues (SSI) based learning to improve students’ argumentation skills (KArg) on additive materials. The learning tools had been developed using the ADDIE model comprising analysis, design, development, implementation, and evaluation. The learning tools were declared valid by expert judgments. There were 33 eighth-grade students at SMP Negeri 1 Pucanglaban, Tulungagung, Indonesia, chosen purposively as the research participants. The study used a one-group pretest-posttest research design to test the effectiveness of the learning tools. The students’ argumentation skills were measured using a rubric with a claim, evidence, and reasoning indicators. The obtained KArg scores before and after the implementation of the learning tools were analyzed using N-gain Score. The results showed that there was an increase in students’ KArg scores with the N-gain values on the three indicators of 0.87, 0.84, and 0.82 respectively, of which the scores were categorized in the high criteria. The increase in the three indicators showed the SSI-based learning tools on additive materials are effective in improving the junior high school students’ argumentation skills

This study aimed to obtain instrument to detect student’s comprehension text on the atomic structure of eligible on validity, reliability, and clarity in the language. The required of validity include: construction, content, psychometric, and predictive validity, and use simple language (straightforward). This instrument was developed following stages: (1) the development of specifications test, (2) writing a matter, (3) a review a matter, (4) assembly a matter (for testing purposes), (5) the trial tests, (6) items analysis, and (7) the selection and assembly matter. The variables in this study include: construct, content, clarity of sentences and grammar, psychometric (item validity, difficulty index, different power, and reliability), and predictive validity. To getting the predictive variables are needed another variable that distinguished the predictor variables and the criterion variable. Predictor variables consist of the ability of perception on the structure of atoms and  the criterion variable is the number of misconceptions students on the concepts of atomic structure. The subject of research for content validity, construct and directness languages are experts in relevant fields to the product of developed instrument, who are  4 (four) chemistry lecturer for instruments which is includes chemistry concepts. The subject of research for psychometric and predictive validity is 130 students of class XI on SMAN 1 Sumberrejo and SMAN Model Terpadu, Bojonegoro. Connectivity test to measure comprehension text to  the number of misconceptions experienced by students was done using descriptive and inferential analysis used X2 test. The results showed that instrument to detect student’s comprehension text was feasible on validity (construction, content, and linguistic), psychometric, reliability, and predictive validity. Penelitian ini bertujuan untuk memperoleh intrumen pendeteksi pemahaman wacana siswa pada struktur atom yang memenuhi syarat validitas, reliabilitas, dan kelugasan dalam bahasa. Validitas yang dipersyaratkan meliputi validitas konstruksi, validitas isi, validitas psikometrik, dan validitas prediktif, serta menggunakan bahasa yang sederhana (lugas). Intrumen ini dikembangkan mengikuti tahapan: (1) pengembangan spesifikasi tes, (2) penulisan soal, (3) penelaahan soal, (4) perakitan soal (untuk keperluan uji coba), (5) uji coba tes, (6) analisis butir soal, dan (7) seleksi dan perakitan soal. Variabel dalam penelitian ini antara lain: validitas konstruk, validitas isi, kelugasan kalimat dan tata tulis, validitas psikometrik (validitas butir, indeks kesukaran, daya beda, dan reliabilitas), dan validitas prediktif. Untuk mendapatkan variabel prediktif dibutuhkan variabel lain yang dibedakan atas variabel prediktor dan variabel kriterium. Variabel prediktor terdiri atas kemampuan siswa memahami wacana pada struktur atom dan sebagai variabel kriterium adalah jumlah miskonsepsi siswa pada konsep-konsep struktur atom. Subyek penelitian untuk validitas isi, konstruk dan kelugasan bahasa adalah para ahli di bidang yang relevan dengan produk instrumen yang dikembangkan,  yang dalam penelitian ini adalah 4 (empat) orang dosen kimia untuk instrumen yang di dalamnya memuat konsep-konsep kimia. Subjek penelitian untuk validitas psikometrik dan validitas prediktif adalah 130 orang siswa kelas XI dari SMAN Sumberrejo dan SMAN Model Terpadu, kabupaten Bojonegoro. Uji keterhubungan data ukur pemahaman wacana siswa terhadap data ukur jumlah miskonsepsi yang dialami siswa dilakukan secara diskriptif dan secara inferensial menggunakan uji X2. Hasil penelitian menunjukkan bahwa intrumen pendeteksi pemahaman wacana siswa telah memenuhi validitas logis (validitas konstruksi, validitas isi, dan kebahasaan), validitas psikometrik, reliabilitas, dan validitas prediktif.