Development of STEM-based practicum on making toothpaste from chicken eggs

Abstract

One challenge in the science learning in industrial revolution 4.0 includes the development of a practical laboratory work that combines science, technology, engineering and through STEM-based learning. This study aims to develop a practical method based on STEM in the manufacture of toothpaste from the chicken in the egg shells as one example of colloid material. Eggshell was chosen because it is regarded as waste material that may create problems on its disposal. However, eggshell contained high amount of calcium, hence it may be utilized as starting material for toothpaste production. The research methods used Research and Development (R&D) comprised of the development of STEM-based worksheet and its validation by experts. Participants of this study were students of class XI, teacher and validator. Data collected included validator sheets and questionnaires responses. This research resulted in the design of a viable practical methods such as lesson plans and worksheets.