This research aims to generate the development of guided inquiry worksheet on acid and base experiment for grade XI valid and practical. This development research using stages of 4-D model i.e define, design, develop, and disseminate. Instruments of data collection used is validation sheet and practicality questionnaire. The developed experiment worksheets based on guided inquiry was validated by five expert and practicality test by 26 students eleven-grade. The data obtained were analyzed using Kappa Cohen Formula. The data obtained were analyzed by using Cohen Kappa Formula. The validity test of the developed experiment worksheets based on guided inquiry is in high validity categories. The practicality test of students about developed experiment worksheets based on guided inquiry indicated a very high category. While the teacher practicality about developed student worksheet obtain a very high practicality category. This finding also suggests that the developed experiment worksheets based on guided inquiry can help students to learn find the concepts of chemistry. In conclusion, the worksheet can be used in chemistry learning process in laboratory (acid and base experiment).

Abstrak Motivasi merupakan dorongan yang mengakibatkan seseorang melakukan tindakan yang dapat berasal dari dalam diri (intrinsik) dan luar/lingkungan (ekstrinsik). Motivasi belajar dapat memengaruhi hasil belajar siswa, baik dari segi kognitif/pengetahuan, minat membaca, persepsi, dan Technological Pedagogical Content Knowledge. Penelitian bertujuan untuk mengukur effect size artikel penelitian tentang hubungan antara motivasi dan hasil belajar siswa IPA. Jenis penelitian yang digunakan adalah metaanalisis menggunakan instrumen lembar tabulasi data dan dianalisis menggunakan software openMEE. Artikel yang dipilih berjumlah 20 dengan rentang publikasi tahun 2016-2021. Rata-rata effect size yang diperoleh dari masing-masing artikel adalah tinggi (efek besar) sehingga diinterpretasikan bahwa terdapat korelasi yang signifikan antara variabel motivasi dan hasil belajar siswa  IPA. Hasil penelitian dapat memberikan acuan bagi guru bahwa motivasi sangat penting diberikan kepada siswa selama proses pembelajaran berlangsung. AbstractMotivation is an impulse that causes a person to take actions that can come from within (intrinsic) and outside/environmentally (extrinsic). Learning motivation can affect student learning outcomes, both in terms of cognitive/knowledge, reading interest, perception, and Technological Pedagogical Content Knowledge. This research aimed to measure the effect size of research articles on the relationship between motivation and learning outcomes of science students. The type of research used was meta-analysis using data tabulation sheet instruments and analyzed using openMEE software. The selected articles were 20 with a publication range of 2016-2021. The average effect size obtained from each article was high (large effect) so it is interpreted that there was a significant correlation between motivational variables and science student learning outcomes. The results of the research can provide a reference for teachers that motivation is very important given to students during the learning process.

The module is one of the teaching materials that is arranged as a whole and systematically. Modules based on learning models can change learning patterns from teacher center to student center. One of the learning models developed specifically for subject matter in the field of science is 5E instructional. The 5E Instructional Model consists of 5 stages namely engagement, exploration, explanation, elaboration and evaluation. The purpose of this study was to develop an instructional module based on 5E chemical laws to improve the process skills of science students. The type of research conducted is research & development (R&D) with the ADDIE development model. The results obtained for the validity of the construct and content were 0.89 and 0.91 with the valid category. Based on the results of the teacher and student response questionnaires, an average practicality score of 86.96% and 86.10% was obtained in the very practical category. The results of the effectiveness test conducted in the experimental and control classes showed that the N-gain value for the experimental class was higher than the control class, namely 0.84 and 0.79. Based on the results of the t-test on student learning outcomes, it was found that tt < th means that the learning outcomes of classes using the 5E instructional module were significantly higher compared to classes that did not use the 5E instructional module. Therefore, it can be said that the 5E-based basic chemistry law module is valid, practical, and effective. The effectiveness of the developed module is seen from the learning outcomes of students and science process skills, so that this module can already be used in the learning process.

Merdeka curriculum emphasizes the ability of students to understand and apply their concepts to solve contextual problems. This research aimed to determine the validity, practicality, and effectivity of buffer solution students’ worksheet based on problem based learning with etnochemistry on students’ science literacy ability. The development model used in this research is 4-D. buffer solution students’ worksheet was validated by 3 chemistry lectures and 2 chemistry teachers. Practicality tests were carried out by 3 chemistry teachers and 32 students. Then, the level of effectiveness of buffer solution students' worksheet is known through the N-gain test. The validity test was analyzed by using aiken's v derived formula consisting the validity of the content and construct which was 0.91 and 0.90 with category valid. The results of the practicality of teachers and students was 88.80 and 87.75 with higher category. Analysis of the n-gain value obtained the results of the value of g = 0.86 in the high category. Then the date analyzed with quantitative method by using hypotheses testing, determined that the research hypothesis was accepted. This result confirmed that buffer solution students’ worksheet based on problem based learning with ethnochemistry was valid, practical, and effective to improving students’ science literacy ability significantly.

Tujuan dari penelitian ini adalah untuk membuat penuntun praktikum sederhana bagi siswa sekolah menengah atas dan menentukan tingkat validitas, kepraktisan dan efektif dari penuntun praktikum tersebut. Jenis penelitian ini adalah Research dan Development (R&D). Model pengembangan yang digunakan dalam penelitian ini adalah model Plomp yang terdiri dari tiga tahap: penelitian pendahuluan, tahap prototipe, dan tahap penilaian. Instrumen penelitian adalah kuesioner validitas, kepraktisan dan efektifitas. Panduan Praktis alternatif berbasis lingkungan divalidasi oleh 4 orang validator dan diuji kepada 17 siswa kelas XII IPA 3 SMAN 2 Bayang dan 29 siswa kelas XI IPA 4 SMAN 1 Batang Kapas tahun akademik 2017/2018. Data validitas, kepraktisan dan efektif dianalisis dengan rumus Kappa Cohen. Momen kappa validitas adalah 0,79 dengan kategori validitas tinggi. Tingkat kepraktisan kuesioner respon guru diperoleh dengan nilai 0,84 dengan kategori kepraktisan tertinggi. Berdasarkan kuesioner respon siswa, nilai momen kappa adalah 0,77 pada SMAN 2 Bayang dan 0,90 pada SMAN 1 Batang Kapas dengan kategori kepraktisan tinggi untuk uji kelompok kecil, dan nilai momen kappa adalah 0,81 pada SMAN 2 Bayang dan 0,84 di SMAN 1 Batang Kapas dengan kategori kepraktisan tertinggi dalam uji lapangan. Tingkat efektivitas kuesioner respon guru diperoleh nilai 0,89 dengan tingkat efektivitas yang sangat tinggi. Berdasarkan kuesioner respon siswa, nilai momen kappa adalah 0,76 dengan kategori efektifitas tinggi. Hasil penelitian dapat disimpulkan bahwa penuntun alternatif berbasis panduan praktis bagi siswa SMA memiliki kategori validitas tinggi, kategori kepraktisan tertinggi, kategori efektifitas tinggi dari siswa dan efektivitas tertinggi dari guru.