The result showed that the suitability of contents, the constructions, the readibility, the attractiveness aspects were classified very high category. The results of student responses to the readability and attractiveness were 88,52% and 87,07%, respectively. From the results of the teachers responses towards students worksheets which were developed, namely students worksheets based on science process skills on the stoichiometry of chemistry, it were obtained the percentage in aspects of the suitability of the contents, the constructions, and the readability were 88,17% 88% and 89,04%, respectively. The student worksheets as development product was tested in the 10th grade of SMAN 14 and SMAN 9 Bandar Lampung to indentity the teachers and students responses. PENGEMBANGAN LKS BERBASIS KETERAMPILAN PROSES SAINS PADA MATERI STOIKIOMETRIPutra, Aditya EkaFadiawati, NoorKadaritna, NinaThis research was using research and development method which purposed to develop the student worksheets based on science process skills on the topic of stoichiometry, and to describe teachers and students responses about the student worksheets as development product.
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