Titik Setyowati, Wuwuh Asrining Surasmi, Barokah Widuroyekti, Dwi Sambada, Pramonoadi, Rahyu Setiani, Dwikoranto, A. Faqih
This study aims to produce a valid and effective Pictorial Riddle-based Student Activity Sheets (SAS) that can improve student's representation skills. The development of Student Activity Sheets uses four D models (Define, Design, Develop and Desseminate) from Thiagarajan. The trial was limited to Open University students in Bojonegoro study group using one shot case study. The research data was collected using validation, observation, tests and questionnaires with validation sheet instruments, observation sheets, learning outcomes tests and questionnaires. Data were analyzed using quantitative and qualitative descriptive analysis, N-gain and t-test. The results of the study show: 1) SAS that was developed are fulfilling in terms of content and construct validity; 2) SAS that was developed are validity criteria fulfilling effectiveness criteria in terms of improving student representation skills and having positive responses. Based on the above, it can be concluded that SAS are valid and effective to improve the representation ability of prospective teacher students. © 2019 IOP Publishing Ltd. All rights reserved.
Open University Indonesia UPBJJ-UT Surabaya, Indonesia; STKIP PGRI Tulungagung, Tulungagung, Indonesia; Department of Physics, Faculty of Science and Mathematics, State University of Surabaya, Indonesia
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