This research aimed to increase the result study of the students throuhgenvironment based learning. Implementation obsevation action classconsisted of two cycles. Procedure implementation observation action class 4 steps such as: (a) preparation action, (b) implementation action, (c) monitoring and evaluation, (d) analysis and reflection. The result ofimplementation observation action class axplanation as; in the first cycles implementation action reach out 70 % and the result studyng reach out 75,6 % or 25 students had complete. In the second cycles implementation action reached out 87.5 % and the result studyng 87,9 % or 28 students had complete.From the result inmplementation observation action class, it can beconcluded that assembling studying based of environment increases theresult studying students in Bahasa Indonesia.
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