Published date:Apr 03 2024

Journal Title: KnE Social Sciences

Issue title: International Conference on Mathematics and Science Education (ICMScE 2022): Learning Materials and Modules

Pages:236–247

DOI: 10.18502/kss.v9i8.15553

Rolina AfrianiDepartment of Chemistry Education UIN Sunan Gunung Djati Bandung, Indonesia

Saepudin RahmatullahDepartment of Chemistry Education UIN Sunan Gunung Djati Bandung, Indonesia

Yulia Sukmawardaniyulia.sukmawardani@uinsgd.ac.idDepartment of Chemistry Education UIN Sunan Gunung Djati Bandung, Indonesia

This research aimed to develop a worksheet based on guided inquiry on colloidal class learning material. Hand sanitizer is one application of the colloid system. In this study, a hand sanitizer was made using an additional ingredient of mahogany seed extract as an active substance to replace alcohol as an antibacterial. The purpose of this study was to compile and determine the results of a guided inquiry-based worksheet validation test. The research method used was Design-Based Research (DBR). The results of the validation test by expert lecturers were declared valid with an average r-count value of 0.860. The worksheets produced are in accordance with the stages of guided inquiry-based learning and are feasible to be applied to colloid subjects in class XI science with a r-count of 0.83. The hand sanitizer produced was in accordance with SNI 2017 with a pH range of 6-8. This worksheet can later be applied in practical waste management and treatment.

Keywords: worksheet, guided inquiry, hand sanitizer

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