Learning science at Government Elementary School (MI) hasessentially a real contribution to the lives of students in preparing daysahead , because it plays an important role in the formation of personality andchildren intellectual development. This is actually a requirement in life andthe lives of children , especially in the guarded character of the slump causedby the rapid development of Science and Technology which is not offset by theincreased quality of faith and piety by the students. If learning science in MI isconcerned in terms of products, processes and scientific attitude development,then these three dimensions will develop studentsâ skills in order to have theknowledge and skills of science through a science process which in turn willproduce a product in the form of facts, principles , theories , and conceptsthat are expected to develop scientific attitude. So, teaching sciences is notonly transfering knowledge but also processing its dimension in its learningor students should actively examine and conclude by observing symptomsso that the results of science learning process in the form of products thatcan be universally useful and in line with the development of his ability andreasoning of studentsâ good scientific-attitude. Generally, there are obstaclesrelated to the understanding of science concepts or misconceptions in MIscience teaching and several science concept approaches that can be used tocontrol them, such as mastery learning model. This approach is oriented ondemocratic because it appreciates children individual learning ability to learn in mastering science concepts without compares to other. It can improve the studentâs ability to achieve a satisfactory level of performance for each student. Keywords: Science concept mastering, Mastery Learning, MI students
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