In this study we address and investigate university students’ perspective on utilizing online learning in the midst of COVID-19 pandemic. This research used qualitative descriptive method. The subject of this research were the learners of Elementary School Teacher Education, Physical Education, Sociology Education and English Education Department of Universitas Megarezky in 2019/2020 academic year. The number of respondents was 40 respondents. The research instruments were questionnaire that was obtained by google form through analyzing participants’ response to know their perspective in using online learning and in-depth interview.  The study showed that previously, students did not use online learning before the pandemic because learning was conducted in the classroom. In the midst of covid-19 pandemic, the students are interested in using online learning in which can be accessed flexible, anywhere and everywhere. The best application used by lecturers and students was WhatsApp application. It can be concluded that the students’ perspective on online learning had a positive impact in the midst of the covid-19 pandemic.

In this paper we have grown pure Ba 0.25 Sr 0.75 TiO 3 (BST) and BST doped by Ferric Oxide Fe 2 O 3 (BFST) with doping variations of 5%, 10%, and 15% above type-p Silicon (100) substrate using the chemical solution deposition (CSD) method with spin coating technique at rotation speed of 3000 rpm, for 30 seconds. BST thin film are made with a concentration of 1 M 2-methoxyethanol and annealing temperature of 850 O C for the Si (100) substrate. Characterization of the thin film is performed for the electrical properties such as the current-voltage (I-V) curve using Keithley model 2400 as well as dielectric constant, time constant, pyroelectric characteristics, and depth measurement. The results show that the thin film depth increases if the concentration of the Ferric Oxide doping increases. The I-V characterization shows that the BST and BFST thin film has photodiode properties. The dielectric constant increases with the addition of doping. The maximum dielectric constant value is obtained for 15 % doping concentration namely 83.1 for pure BST and 6.89, 11.1, 41.63 and 83.1, respectively for the Ferric Oxide doping based BST with concentration of 5%, 10%, and 15%. XRD spectra of 15 % of ferric oxide doped BST thin film tetragonal phase, we carried out the lattice constant were a = b = 4.203 Å; c = 4.214 Å; c/a ratio = 1.003.

Indonesia is one of the largest multicultural countries in the world. This reality can be seen through the diverse and extensive socio-cultural and geographical conditions. This study aims to investigate the implementation of the Inside-Outside Circle (IOC) instructional model for the multicultural education. This research used qualitative and quantitative methods. Methods of data collection using observation, interviews and literature study. The results showed that multicultural education can be used as a strategic instrument to develop awareness of one's pride in one's ethnic group. Multicultural education is also very relevant to a pluralistic society such as Indonesia, which emphasizes an understanding of multi-ethnicity, multi-religion, and multiculturalism which requires a new construction of justice, equality and a democratic society. The application of integrative multicultural education can use a cooperative learning model, namely the Inside-Outside Circle (IOC) linstructional model and the application of multicultural education in an integrated curriculum with other subjects such as in the Sociology Education program.

Inside Outside Circle (IOC) is the inner - outer circle group that emphasizes students’ activities to be active in sharing information with their group of friends.This research aimed to develop instructional materials based on inside-outside-circle (IOC) in sociology students of Megarezky University.The development model used is Four-D Model which consists of 4 stages of development namely define, design, develop and disseminate. The instruments of this study used observation, questionnaire, test and documentation. The result of the research showed that IOC model had good quality which met valid, practical, and effective product criteria. It can be concluded that IOC model is one of the improvement from cooperative learning model. Based on practicality, lecturers of teaching and learning can implement IOC learning model in universities (classrooms). then all students achieved individually in teaching and learning courses, it means that students' learning outcomes reached the classical graduation criteria that had been set, that was 100% of students passed. It means that they met the criteria that set the teaching and learning course.It shows instructional materials with IOC model that had been developed consisting of semester lesson plan (RPS), students learning outcomes assessment sheets (LPHBM) that can be used in teaching and learning courses in general and especially in sociology education of Megarezky university.Keywords: Development of Learning Devices, Inside-outside-circle (IOC) model, Instructional Material, Model pembelajaran berbasis Inside Outside Circle (IOC) adalah kelompok dalam-luar lingkaran yang menekankan kegiatan mahasiswa untuk aktif dalam berbagi informasi dengan teman-teman kelompok mereka. Penelitian ini bertujuan untuk mengembangkan perangkat pembelajaran berbasis IOC pada mahasiswa penddikan sosiologi Universitas Megarezky. Model pengembangan yang digunakan adalah Model Empat-D yang terdiri dari 4 tahap pengembangan yaitu mendefinisikan, mendesain, mengembangkan dan menyebarluaskan. Instrumen penelitian ini menggunakan observasi, angket, tes dan dokumentasi. Hasil penelitian menunjukkan bahwa model IOC memiliki kualitas baik yang memenuhi kriteria produk yang valid, praktis, dan efektif. Dapat disimpulkan bahwa model IOC adalah salah satu perbaikan dari model pembelajaran kooperatif. Berdasarkan kepraktisan, dosen pengajaran dan pembelajaran dapat menerapkan model pembelajaran IOC di universitas (ruang kelas). Dan kemudian semua mahasiswa berprestasi secara individu matakuliah Belajar dan Pembelajaran, itu berarti bahwa hasil belajar siswa mencapai kriteria kelulusan klasik yang telah ditetapkan, yaitu 100% siswa lulus, mahasiswa memenuhi kriteria yang menetapkan pengajaran dan pembelajaran tentu saja Ini menunjukkan bahan ajar dengan model IOC yang telah dikembangkan terdiri dari rencana pembelajaran semester (RPS), dan lembar penilaian hasil belajar siswa (LPHBM)) dapat digunakan dalam pengajaran belajar dan pembelajaran pada prodi pendidikan sosiologi Universitas MegarezkyKata Kunci: Pengembangan Perangkat Pembelajaran, Model inside-Outside-Circle (IOC), Bahan Ajar

The aim of this study is to determine the characteristics of teaching materials with a valid, practical, and effective for Creative Problem Solving (CPS) model, to improve mathematics learning outcomes for elementary school students. The teaching materials developed were syllabus, lesson plan, student worksheets and modules. This research used Research & Development (R&D) with a Four-D development model consisting of 4 phases of development, namely: Define, Design, Develop and Disseminate. At the Define phase, the researcher conducts initial analysis, student analysis, concept analysis, performance/task analysis and analysis of the formulation of learning objectives. At the Design phase, the researcher arranges tests, selects formats, and designs the syllabus, lesson plans, worksheets, and modules based on creative problem solving. At the development phase, which consists of the assessment of experts with the results of the validation of teaching materials and the results of the validation of research instruments and the dissemination phase of the dissemination of research tools and results. The research instrument used the implementation of the model, student activities, teacher responses, students’ responses and learning outcomes.