Modules are one of the learning materials that can be used in the learning process. Modules compiled based on guided inquiry learning syntax and integrating experimental activities that will be able to improve students' science process skills. This study aimed to produce a reaction rate module based on guided inquiry integrated experiments and valid student science process skills and practical use in senior high school chemistry learning. The type of this research was research and development (R & D) and the development model used was the 4-D model which consists of four stages: (1) define, (2) design, (3) development, (4) desseminate. This research was limited to the validity and practicality test. The validity test was carried out by 5 experts and limited trials to reveal the practicality done at SMAN 1 Lubuk Basung. The research instrument used was in the form of a validity and practicality questionnaire which was analyzed using kappa moment (k) Data analysis showed that the average moment of kappa validity was 0.84 with a very high validity category. The average practical kappa moments from teachers and students were respectively 0.83 and 0.85 with a very high practicality category. These results were also supported by the analysis of students' answers in answering critical questions, exercises, prelab questions, postlab questions, and worksheets in modules, with an average value of 90.2. Based on the results of the study it can be concluded that the guided inquiry integrates experiments and science process skills on based reaction rate topic are valid and practical used for chemistry learning in senior high school.
The problem in this study is the completeness of student learning in traditional bun arrangement subjects is still unsatisfactory, students lack the initiative to find information about traditional bun arrangement to support learning, students lack understanding of the basic topic oftraditional bun arrangement, students are less skilled in making traditional bun arrangement techniques and the limitations time and resources for learning during learning activities in the delivery of traditional bun arrangement.Based on these problems, this study aims to develop a valid, practical and effective discovery learning module based on subjects in traditional bun arrangement. This development model plompis applied. There are three phase, namely initial investigation, prototyping and assessment. The evaluation method used is formative evaluation consisting of self evaluation, expert review, individual evaluation, and small group evaluation. The research instruments used were interview sheets, questionnaires in the form of validity in practicality sheet and objective. Validation results obtained as very high criteria. The practical results by students in small group and on field test obtained as high criteria, while the level of practicality by teachers obtained as very high. The result of hypothesis test show that there was a significant difference between the studentslearning outcomes of the experimental and the control class in the school. The result shows that the traditional bun arrangement module based on discovery learning has fulfilled the valid, practical and effective criteria.
Menguasai sains dan teknologi adalah kunci penting untuk menghadapi tantangan masa depan. Pendidikan sains memainkan peran penting dalam mempersiapkan siswa yang dapat berpikir kritis, kreatif, logis, dan mengambil inisiatif dalam memecahkan masalah. Penelitian ini bertujuan untuk menghasilkan lembar kerja siswa berbasis masalah pada topik ikatan kimia. Pada penelitian ini digunakan metode penelitian Research and Development (R&D) dengan model pengembangan 4-D yaitu terdiri dari tahap define, design, develop and disseminate. Instrumen pengumpulan data yang digunakan adalah lembar validasi dan angket praktikalitas. Lembar kerja yang dikembangkan divalidasi oleh enam orang ahli dan uji praktikalitas oleh 25 orang siswa SMA Negeri 1 Batang Kapas, Pesisir Selatan. Data yang diperoleh dianalisis dengan menggunakan Cohen's Kappa Formula. Uji validitas menyatakan lembar kerja siswa yang dikembangkan memiliki kategori validitas yang sangat tinggi. Uji praktikalitas siswa tentang lembar kerja siswa yang dikembangkan menunjukkan kategori yang sangat tinggi dan uji praktikalias guru memperoleh kategori kepraktisan yang sangat tinggi. Penelitian ini menyimpulkan bahwa lembar kerja pembelajaran berbasis masalah pada topik ikatan kimia adalah valid dan dapat digunakan dalam kegiatan pembelajaran. Temuan ini juga menunjukkan bahwa lembar kerja siswa yang dikembangkan dapat meningkatkan minat siswa untuk belajar dan dapat membantu siswa untuk belajar secara mandiri. Kata kunci: lembar kerja siswa, ikatan kimia, problem based learning, model 4-D, pendidikan kimia
Classroom Action Research through the NHT-aided model of Quipper School media aims to enhance learning activities and critical thinking skills of learners. The subjects of this study are students often grade student. This study was conducted in 2 cycles. there is an increase in student activity during the learning process that is 38% I cycle, and on the II cycle 71%. Based on the cycles test carried out the critical thinking ability of learners also increased from 40% in the first cycle to 80% in cycle II. The result of the research shows the increase of learning activity and critical thinking ability of the students from cycle I to cycle II. From the research result, it can be concluded that the cooperative model of Numbered Heads Together type media quipper school is effective in increasing the activity and critical thinking ability of the students of ten grade student Lesson Year 2016/2017.
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