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This research was conducted against the background of the facts in the field that the teaching materials used in learning chemistry use printed LKS / textbooks so that the chemistry learning felt by students is ordinary; the teaching model used is still teacher-centered which causes less active participation of students in learning. It causes the lack of development of critical thinking skills due to the lack of training for students to develop thinking skills. This study aimed to produce guided inquiry-oriented e-worksheets that are feasible as a learning media using live worksheets on electrolyte and non-electrolyte solution material that were reviewed through validity and practicality testing. This research uses the Research and Development (R all 6 indicators of critical thinking skills, according to Facione, with the help of a live worksheet, so it is interactive. This study involved validators, namely 1 person from a chemistry teacher and 2 chemistry lecturer experts, respondents, namely 28 students, and 3 observers. E-worksheet validation results get modes 4 and 5 to be included in the valid and very valid categories. The practical results of the learner response questionnaire get a percentage between 92.86 - 100%, so it is said to be very practical. This is also supported by the learner activity observation sheet, which the observer observes. The research results show that a guided inquiry-oriented e-worksheet using live worksheets can train students' critical thinking skills on electrolyte and non-electrolyte solution materials.
Agustin et al. (Thu,) studied this question.