Validitas dan Praktikalitas Modul Larutan Penyangga Berbasis Pendekatan Saintifik dengan Menerapkan Teknik Probing dan Promting untuk Kelas XI SMA/ MA

Abstract

Curriculum 2013 recommends scientific approach in learning and expects students to be critical thinking. The research aim to develop a buffer module based on scientific approach for XI SMA/ MA class and to determine validity and practicality level. This developed module uses probing questions (digging questions) and promting (guiding questions) to train critical thinking students. This research is Research and Development (R&D) with 4-D model. Validity test was done by 2 chemistry lecturers at FMIPA UNP, 1 chemistry teacher at SMAN 7 Padang, 1 chemistry teachers at SMAN 12 Padang and 1 chemistry teacher at SMAN 13 Padang. Practicality test was done by 2 chemistry teachers at SMAN 7 Padang, 1 chemistry teacher at SMAN 13 Padang and 27 XII MIPA 5 SMAN 7 Padang students. The instrument was validity and practical questionnaire and data was analyzed by Cohen Kappa formula. This study produced a buffer module based on scientific approach with an average kappa moments 0,94 which is very high level of validity. The results of the teacher practicality test and the students practicality test obtained an average of kappa moments in a sequence of 0,91 and 0,73 with a very high level and high level of practicality Keywords : module, buffer, scientific approach, probing and promting 4-D models