Hidayati Kardena, Mawardi Mawardi
This study aims to produce a worksheet of chemical equilibrium which based on guided inquiry to determine the validity, practicality and effectiveness the student worksheet on student learning activities. Learning activities are assessed in the form of listening activities, visual activities, mental activities, oral activities, writing activities and motor activities. This research method was a research development using the Plomp model. The research subjects were students majoring in chemistry in 2019. The research instruments used were validation sheets, practicality sheets and observation sheets of learning activities. This research found that the students' worksheets have a very high level of validity (k=0,91) and very high level of practicality by students (k=0,87) and high by the lecturer (k=0,79). The results showed that in general, the average student learning activity was 81,18% which was included in the very high category. It shows that the students' worksheets which have been produced can be used as one of the teaching materials in the learning process on chemical equilibrium material. © Published under licence by IOP Publishing Ltd.
Postgraduate Program on Chemistry Education, Universitas Negeri Padang, Indonesia; Chemistry Department, Universitas Negeri Padang, Indonesia
