The effectiveness of nature-based practicum worksheet on acid-base titration material towards students' science process skills

The study aimed to find out the eligibility, effectiveness, and practicality of Nature-Based Student Practicum Worksheet on Acid-Base Titration towards students' Science Process Skills. Research and Development method was used in this study. The research was conducted at SMAN 1 Kendal. The result of the validation assessment showed that the developed worksheet was eligible, with an average score, given by the validators, was 89.58% for its materials and 90.28% for its media. The analysis result of the students' science process skills in performing practicum activities showed that 60 students reached a "very good" category and 9 students reached a "good" category; and the result of evaluation test revealed that 62 out of 69 students passed the minimum passing criteria (≥75). The reliability of the questionnaire for the students' responses was also tested; and it was revealed that its reliability was 0.89. According to the validation stage, the test results on a small and a large scale showed that the nature-based practicum worksheet on acid-base titration material towards students' science process skills was eligible, effective, and practical to be implemented.