The Development of Spa and Body Treatment Textbook

The changes in teachers’ roles due to 21st-century learning significantly affected the education system where the students were supposed to learn independently through various sources; one of them was textbooks. There were still many textbooks which do not provide all the material needed, or it could be said that there was a lack of learning material. Therefore, this study aimed to determine the steps of developing a textbook and finding out the reliability of the Spa and Body Treatment textbook based on expert judgment and media experts. Research and Development (R&D) was used as the research design of this study, particularly the ADDIE model that consisted of Analyze, Design, Development, Implementation, and Evaluation. The findings showed that; 1) the first step was to analyze where the additional materials were added in the previous textbook. It was continued to the next step in order to design the textbook that would be arranged. The third step was development, in which the textbook was developed by adding the new materials to support the learning activities. Implementation was the fourth step where the arranged textbook was implemented. The last step was evaluation, in which all the activities that had been done were evaluated. 2) The feasibility of the Spa and Body Treatment textbook was "Good." It was revealed that the textbook is reliable to be used in the learning process.