Penelitian ini bertujuan untuk menguji pengaruh penerapan media pembelajaran terintegrasi berbasis Science, Technology, Engineering, and Mathematics (STEM) untuk meningkatkan hasil belajar kimia pada materi reaksi redoks. Rancangan penelitian berupa penelitian eksperimen yang terdiri dari validasi dan implementasi media pada pembelajaran kimia SMA/SMK. Media pembelajaran STEM yang dikembangkan berupa sensor gas CO2 dilengkapi dengan modul ajar. Hasil validasi menunjukkan media pembelajaran kimia terintegrasi berbasis STEM memperoleh kriteria valid. Uji coba lapangan dilakukan pada 66 siswa kelas eksperimen dan kontrol di SMKN 5 Surabaya. Berdasarkan hasil uji coba lapangan, terdapat perbedaan hasil belajar yang signifikan baik aspek kognitif, afektif, dan psikomotor.

Research and development of sigil-based teaching materials based on facts in yhe field, namely students rarely read textbooks in printed form because the display is less attractive, additive and addictive substances have not been delivered as a whole so thaht astudents miss lessons and lack insight. When in class students tend not to play attention because the learning used by teachers is often convensional and rarely uses media. Teaching materials are needed by students in learning activities that can be used anytime and anywhere so that learning activities can be efficient. The purpose of the study was to describe the results of validation and student responses to sigil-based teaching materials for junior high schools. This type of research is the research and development of R&D (Research and development). The development model in this study uses a model developed by Thiagarajan 4-D. The product that has been developed is then validated by 2 (two) lecturers from the Faculty of Tarbiyah and teacher Training consisting of material experts and media experts as well as one science teacher of SMP Plus Darus Shlolah as user expert. After being validated, the product is then field tested to determine student responses. The results of the materials expert assessment are 98.75%, 91.42% media expert and 92.30% user expert, all three have a high percentage so that the developed digital teaching material has the criteria of “very valid”. The small-scale trial results showed a percentage of 78.4% so they included the criteria of “interesting”. Large-scale trial results the percentage of results is 83.3% so it includes the criteria of “very interesting”.

Students who do not raise questions that are applicable and the ability to identify a problem according to the concept of science, show that the scientific literacy of students is classified as low science in a real context. In general, this study aims to examine the effect of the application of the virtual laboratory on the scientific literacy ability of students on the subject matter of force and motion. This research method uses quantitative research types Quasi Experimental Design. The population in this study were students of class VIII and the sample was selected by purposive sampling. The instrument of scientific literacy is a description test. Prerequisite test results use Kolmogorov Smirnov for normality and use One-Way ANOVA for homogeneity. Then the hypothesis test was performed using the Z test. The results of the study obtained an average value of scientific literacy at a pretest significance value of 0.403> 0.05 so that H0 was accepted and Ha was rejected. While the posttest value has a significance value of 0.001 <0.005 so that H0 is rejected and Ha is accepted. So that it shows a significant influence between the scientific literacy abilities of students in the two classes.

Penelitian ini bertujuan : 1) untuk  mengetahui perbedaan hasil belajar menggunakan model pembelajaran kooperatif tipe STAD dengan menggunakan model pembelajaran konvensional; 2) untuk mengetahui pengaruh yang signifikan penerapan model pembelajaran kooperatif tipe STAD terhadap hasil belajar siswa MTsN 1 Jember kelas VII pada materi Objek IPA dan Pengamatannya tahun pelajaran 2019/2020. Jenis penelitian ini adalah Quasi Experiment yang didesain menggunakan Nonequivalent Control Group Design dengan teknik pengambilan sampel menggunakan purposive sampling dan populasi seluruh siswa kelas VII MTsN 1 Jember. Selama proses pembelajaran, aktivitas siswa meningkat dan setelah perlakuan nilai rata-rata posttest kelas eksperimen lebih tinggi dari rata-rata posttest kelas kontrol. Berdasarkan analisis data dengan menggunakan uji-z pada taraf signifikansi 0,05, maka Ha diterima, artinya data dapat disimpulkan bahwa ada pengaruh yang signifikan penerapan model pembelajaran kooperatif tipe STAD  terhadap hasil belajar siswa MTsN 1 Jember kelas VII pada materi Objek IPA dan Pengamatannya tahun pelajaran 2019/2020.   Abstract The science learning still applies to the conventional learning model. Which is usually dominated by the teachers, and there are students who have individual characteristics/are less able to cooperate with others. It causes the low students learning outcomes. The Cooperative Learning model  (STAD) type allows to be applied in the science learning at seventh grade on the subject matter of science and its observations, because the material is conceptual and procedural. This study aims: 1) to describe out the differences in learning outcomes using the STAD (Student Team Achievement Division) type cooperative learning model and using the conventional learning model; 2) to analyze out the significant influence of the implementation of the STAD type cooperative learning model to the learning outcomes of MTsN Jember 1 students in grade 7 on the Natural Sciences subject and its observations in academic year 2019/2020. This type of research was a Quasi Experiment that was designed using Nonequivalent Control Group Design with the sampling techniques using purposive sampling. The population was all 7th grade students of MTsN 1 Jember. During the learning process, the students activity increased and after the treatment, the posttest score of the experimental class was higher than the average posttest of the control class. Based on the data analysis using the z-test at a significance level of 0.05, Ha is accepted. It can be concluded that there was a significant influence on the implementation of the STAD type cooperative learning model to the student learning outcomes of MTsN 1 Jember in grade 7 on the Natural Sciences subject and its observations in academic year 2019/2020.

Penelitian ini menguji pengaruh penggunaan mind map terhadap pemahaman konsep stoikiometri mahasiswa pada mata kuliah kimia dasar. Penelitian ini merupakan penelitian eksperimen semu dengan menggunakan rancangan nonequivalent pretest-posttest control group design. Subjek penelitian terdiri atas 80 mahasiswa. Instrumen penelitian berupa instrumen tes untuk mengukur kemampuan pemahaman konsep stoikiometri mahasiswa pada mata kuliah kimia dasar. Hasil penelitian menunjukkan nilai rata-rata pemahaman konsep stoikiometri mahasiswa yang belajar menggunakan mind map sebesar 85,50 lebih besar daripada nilai rata-rata pemahaman konsep stoikiometri mahasiswa yang belajar menggunakan ceramah dengan nilai 80,35. Hal ini menunjukkan bahwa pemahaman konsep stoikiometri mahasiswa yang belajar menggunakan media mind map lebih tinggi dibandingkan mahasiswa yang belajar dengan ceramah. Hasil penelitian ini dapat disimpulkan bahwa pembelajaran dengan menggunakan mind map lebih efektif dibandingkan metode ceramah terhadap kemampuan pemahaman konsep stoikiometri mahasiswa