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Penelitian ini bertujuan untuk rekonstruksi pengetahuan masyarakat suku duanu secara ilmiah dalam tradisi manongkah kerang. Metode pengumpulan data menggunakan wawancara mendalam kepada tokoh masyarakat suku duanu dan studi literatur. Data dianalisis menggunakan metode analisi kualitatif miles dan Huberman. Hasil penelitian menunjukkan masyarakat suku duanu memiliki tradisi manongkah kerang berupa kegiatan pengambilan kerang di pesisir pantai Indragiri hilir riau. Proses pengambilan kerang dan alat yang digunakan memiliki pengetahuan masyarakat lokal (indigeneous science) yang memuat konsep-konsep sains dan adanya terkansung nilai konservasi lingkungan. Kearifan lokal manongkah kerang dapat digunakan dalam pembelajaran IPA dengan  adanya konsep sains dan nilai-nilai konservasi terutama pada materi tentang ekosistem.

Mixed methods research is currently developing and has become an interesting issue and trend in the field of education. This makes the writers want to provide a reference and technical guidance to increase students' knowledge in providing mixed methods research. This type of research is literature review research that discusses various interesting issues from journals and books related to this research theme. This article describes matters related to the definition, types and procedures of mixed methods, population and samples, instruments, data collection and data analysis techniques carried out by mixed methods. The results of this study provide clarity and important exposure to research methodologies for students who will carry out their research in the field of education that focuses on mixed methods research. Hence, the research method will provide advantages of both quantitative and qualitative approaches to unveil the research phenomena in depth. In addition, this research has also real implications for students and researchers in carrying out good and appropriate mixed methods research.

Community Learning Centre (CLC) is the Indonesian government's primary education to the children of Indonesian migrant workers in palm oil plantations in Sarawak, Malaysia. Teachers` self-efficacy and classroom management are important issues in education, including for Indonesian children overseas. Self-efficacy means that the belief of teachers to perform good quality and competency in teaching-learning practices. The teachers who have high self-efficacy may be able to solve problems faced by students. They have the confidence to find out the solutions effectively. Meanwhile, classroom management is a teacher's efforts to supervise classroom activities such as training, group interaction, and learner performance. The successful study is determined how far the teacher can manage their classes. A good class is not a silent class, but making more participating in the teaching-learning process. In CLC Sarawak's context, teachers` self-efficacy and classroom control are the key concepts to enhance Indonesian students' learning. There are some beneficial impacts for the students if their teachers have self-efficacy highly and promising approach in classroom management, namely: (1) Students meet a figure who can be trusted and help to solve their problems; (2) Students enjoy in the teaching-learning process because the teachers bring them the simplicity from complex materials and concept; (3) Students are more confident and actively to participate in their classroom; (4) Students will have critical thinking and can quickly answer the questions; (5) Students have high motivation and try their best in the study for their success in the future.

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