This research aims to develop science process skills and problem-solving abilities based on outdoor learning in junior high school. This study uses a mixed method design embedded experimental models. Data was performed in the qualitative and quantitative analysis. Qualitative data analysis is used to determine the science process skills while quantitative data analysis is used to determine the increasing problem-solving ability by using normalized gain (N gain) formula. The results show that the science process skills developed at every phase comprise of making observations, formulating hypotheses, experiment, create data, classify and analyze the data, formulating its conclusions, communicate, and apply the concepts and make predictions obtained by the average value of 75.33 in the good category. While the problem-solving ability of students based on outdoor learning also increased by 0.58 in the medium category. The conclusions of this research show that the application of outdoor learning can be teacher use as an alternative to learning, so it is quite effective in developing science process skills and problemsolving abilities.

This research was conducted to: (1) design a Schoology-based blended learning media for Basic Physics I course on the topics of vector quantity, linear motion, and translational dynamics, (2) describe the validity of the product, (3) describe the product's effectiveness in enhancing students' conceptual understanding and problem solving skills, and (4) describe students' responses towards the media and blended learning model. The development procedures employed were ADDIE model which consisedt of five stages: analysis, design, development, implementation, and evaluation. In development stage, the assessment had been conducted by two experts to assess validity of media both in content and construct aspects. The results showed that the validities in content aspect and construct aspect were "very good" and "good", respectively. The results from classroom implementation revealed the effectiveness of the product in enhancing students' conceptual understanding and problem solving skills. Students' responses towards the product's utility, attractiveness, and easiness as blended learning media were also positive. The conclusion was that the media was valid and effective as blended learning media of Basic Physics I course.

Abstract—This study aims to analyze students' scientific critical thinking skills through learning with edmodo-based blended learning models. This study is Pre-Experimental using one group pre-test post-test design involving 35 class VIII students at Public Junior High School 10 Jember, Indonesia. The instru-ments used were teacher activity observation sheets, student activity observation sheets, scientific critical thinking skills assessment sheets, and student motivation sheets. Before and after learning activity, students are given the same initial test (pre-test) and final test (post-test). The collected data was analyzed by quantitative descriptive analysis. The results of the study show that: (1) students are motivated in classical learning by 78.13% with motivated criteria. The highest value is on the likes and active indicators using Edmodo, which is equal to 88.47% and the lowest value on the indicator of activity asks questions and opinions at edmodo, which is equal to 70.93%; and (2) there is an increase in scientific critical thinking skills of students with a mean n-gain of .32, with the criteria being moderate. The highest value is achieved on the indicator of fact analysis, which is equal to .55 and the lowest value on the indicators of delivery of argumentation, which is equal to .19. The conclusion of this study is that science learning with an edmodo-based blended learning model can motivate learning and improve scientific critical thinking skills of junior high school students.

ABSTRAKPenelitian ini bertujuan mengembangkan petunjuk praktikum IPA yang valid dalam meningkatkan kemampuan berpikir kritis siswa SMP. Indikator kemampuan berpikir kritis siswa mencakup interprestasi, analisis, evaluasi dan inferensi. Penelitian ini merupakan penelitian Research and Development dengan metode Analysis, Design, Development, Implementation and Evaluation (ADDIE). Validasi ahli dilakukan dengan uji expert terkait dengan format, isi/materi, dan bahasa, sedangkan uji coba produk diberikan kepada 35 siswa di salah satu SMP di Jember. Instrumen yang digunakan adalah dokumentasi, lembar validasi, lembar observasi, pretest dan posttest. Hasil tes maupun praktikum menunjukkan adanya peningkatan kemampuan berpikir kritis siswa. Berdasarkan indikator kemampuan berpikir kritis diperoleh nilai ratarata Ngain 0,5 dengan interpretasi sedang. Pengembangan petunjuk praktikum IPA yang dikembangkan dalam kategori layak sehingga cukup efektif dalam meningkatkan kemampuan berpikir kritis siswa.Kata kunci: Petunjuk Praktikum, Ilmu Pengetahuan Alam (IPA), Kemampuan Berpikir Kritis. ABSTRACTThis research aims to develop practical guideline of natural science that can improve critical thinking skills in junior high school students. Indicators of students' critical thinking skills include interpretation, analysis, evaluation and inference. This study was a Research and Development with Analysis method, Design, Development, Implementation and Evaluation (ADDIE). Validation associated with test format, content/material, and language was done by experts, while the implementation was given to 35 students in one of Junior High Schools in Jember. The instruments used are documentation, validation sheets, observation sheets, pretest and posttest. Written and lab test results showed an increase in students' critical thinking skills. Based on indicators of critical thinking skills Ngain value was 0.5, in which it was categorized as moderate. Practical guideline of natural science developed was considered as decent and quite effective in improving students' critical thinking skills.Keywords: Practical guideline, Natural Science, Critical Thinking Skills. PENDAHULUANPembelajaran IPA merupakan suatu proses pembelajaran yang menekankan pada gejala-gejala alam beserta hubungannya antar gejala tersebut, sehingga dalam proses pembelajaran IPA tidak hanya menekankan pada segi kognitif saja, melainkan juga meliputi sikap, proses, produk dan aplikasi yang harus dilakukan secara menyeluruh. Pembelajaran IPA memerlukan suatu keterampilan dalam mengkaitkan antar konsep dan penggalian bukti. IPA sebagian besar dibangun atas dasar rasa ingin tahu, tidak hanya tentang objek yang akan diteliti, tetapi juga merupakan peran sebagai peneliti dan proses transformasi pribadi selama penyelidikan (Mutveia dan Mattssonb, 2014).Proses pembelajaran IPA merupakan suatu kegiatan yang meliputi observasi, membuat hipotesis, merencanakan dan melaksanakan eksperimen, evaluasi data pengukuran, dan sebagainya, sedangkan produk pembelajaran IPA merupakan hasil dari ...