No abstract

PHET and PBL: Do They Work Well Together in Improving Mathematical Critical Thinking and Problem Solving Ability?. Objectives: This research aims to examine the effectiveness of the use of PBL combined with PHET rather than PBL about mathematical critical thinking and problemsolving ability. Methods: This research employed an experimental approach involved a sample of 63 students of grade VIII's favorite MTs in Sidoarjo Regency, East Java, divided into 2 classes (PBL class combined with PHET and regular PBL class). The data were analyzed with descriptive statistics combined with Mann-Whitney's statistical test. Findings: This research finds out that there is no difference in the influence of the intervention on the application of PBL combined with PHET with the usual PBL group in developing students' mathematical problem-solving ability, and there are differences in the influence of interventions on the implementation of PHET integrated PBL and the application of ordinary PBL in developing students' mathematical critical thinking ability. Conclusion: Based on findings, the importance of providing adequate computer facilities for students when they want to implement website-based learning media such as PHET.

AbstrakPenelitian ini bertujuan untuk mengetahui kualitas hasil pengembangan Lembar Kerja Mahasiswa (LKM) berbasis metode ilmiah pada materi lingkungan dan perubahannya yang memenuhi kriteria kevalidan, kepraktisan, dan keefektifan. Penelitian pengembangan ini didesain dengan model Plomp & Nieveen yang terdiri dari tiga fase, yaitu penelitian pendahuluan (preliminary research), pengembangan atau pembuatan prototipe (development or prototyping phase), dan penilaian (assessment phase). Subjek uji coba penelitian ini adalah mahasiswa prodi Pendidikan IPA. Data yang diperlukan dalam penelitian dikumpulkan melalui lembar validasi ahli, lembar observasi, dan angket respon mahasiswa. Teknik analisis data dilakukan secara kualitatif dan kuantitatif. Hasil penelitian yang diperoleh adalah LKM berbasis metode ilmiah memenuhi kriteria kevalidan, kepraktisan secara teori dan praktek, serta keefektifan. Dengan demikian, LKM tersebut adalah berkualitas.AbstractThis study aimed to find the quality of the students’ worksheet development based on scientific method in environment and its material changes which fulfilled the criteria of validity, practicality, and effectiveness. This developing research was designed using Plomp & Nieveen model which consisted of 3 phases, namely preliminary research, developing or prototyping, and assessment phases. The subjects of this study were students of Science Education Department. The data needed in this study were collected through expert validation sheet, observation sheet, and questionnaire. The data were analyzed qualitatively and quantitatively. The result of this study indicated that the students’ worksheet based on scientific method gained the criteria of validity, practicality, and effectiveness. Therefore, the developing students’ worksheet (LKM) had quality.

How the division of learning time and the role of teachers affect each other on the results of their achievement tests. The researchers analyzed how the time of day influenced the results of student achievement tests and teaching methods in the morning and afternoon hours in English subjects. By using a collection of data on the scores of students' morning and afternoon achievement tests consisting of 2 classes, namely eleventh grade at the full day school in Kureksari Waru Sidoarjo. The researcher conducted data analysis with SPSS for the semester 1 achievement test value data and described the results of teacher interviews on the teaching method. There is a good influence in the class to affect the students of the EFL classroom instead of afternoon class. Morning class reached mean 45,883 points with 13,5445 standard deviations, while afternoon class only came up with 36,394 points with 13.6110. In addition, there was evidence of physical fatigue in the afternoon class as a result of interviews with several students. The absence of differences in teaching methods in the morning and afternoon classes makes students experience this and feel sleepy.

Berdasarkan observasi yang dilakukan selama PLP, ditemukan keluhan tentang kondisi siswa yang prestasi akademiknya kurang baik. Saat pembelajaran berlangsung, ada beberapa siswa yang kurang memperhatikan proses pembelajaran yang sedang berlangsung. Jika dibiarkan terus menerus akan menjadi tradisi yang sulit dihilangkan, sehingga seorang guru perlu untuk merancang sistem pembelajaran yang lebih efektif. Salah satunya dengan pembelajaran kooperatif metode pee teaching atau tutor sebaya. Penelitian ini bertujuan untuk mengetahui pengaruh pengaruh metode peer teaching terhadap hasil belajar IPA siswa kelas VII pada materi zat dan perubahannya di SMPN 26 Surabaya tahun ajaran 2022/2022. Jenis penelitian adalah penelitian eksperimen semu. Desain penelitian yang digunakan adalah posttest only control design. Desain ini terdapat dua kelompok yaitu kelas kontrol dan kelas ekperimen. Kelas kontrol adalah VII G dan kelas ekperimen VII A. Metode yang digunakan untuk mengumpulkan data adalah observasi, tes,dan dokumentasi. Teknik analisis data menggunakan uji t-test, dengan uji prasyarat terlebih dahulu. Hasil penelitian menunjukkan nilai yang diperoleh rata-rata nilai kelas kontrol adalah 56 dan rata rata nilai kelas eksperimen adalah 70. Pada uji normalitas menujukkan nilai Sig. 0,90 > 0,05 maka data terdistibrusi dengan normal. Uji homogenitas menujukkan nilai Sig. 0,541 > 0,05 maka varians kedua kelas homogen. Pada uji independent sample T-Test Nilai Sig. (2-tailed) 0,028 < 0,05 oleh karena itu dapat disimpulkan bahwa H0 ditolak dan Ha diterima. Artinya terdapat pengaruh metode peer teaching terhadap hasil belajar IPA siswa kelas VII pada materi zat dan perubahannya di SMPN 26 Surabaya tahun ajaran 2022/2022.