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Abstract
This study aims to analyze the validity, feasibility and effectiveness of health case-based learning supplements to increase the level of concepts understanding and health literacy of high school students on immune system material. It is a type of R&D research using the development method by Sugiyono. The development process is carried out by conducting links to various articles related to Covid-19 infection cases in national and international journals. The supplement testing phase consists of three stages, namely validity test, feasibility test and effectiveness test. Validity tests include material validity tests and media validity tests conducted by material and media validators. The feasibility test and effectiveness test were carried out at Senior High School1 Tayu. The population of this study was all grade XI mathematics and natural sciences students at Senior High School 1 Tayu with class XI MIPA 4 as a sample. Sample selection is carried out using the purposive sampling method. In collecting data on the effectiveness of supplements to improve students' understanding of concepts and health literacy, a one group pretest-posttest design was used. Observation and interview sheets, validation questionnaire sheets, student and teacher response sheets, comprehension test questions and health literacy questionnaire sheets based on HLS-EU-Q indicators were the instruments used in this study. Based on the results of the material validity test and media validity, it shows that the supplement is in the very valid category with a percentage of material validity of 91% and media validity of 94%. Based on the results of the feasibility test from the responses of teachers and students, supplements get a percentage of 83% and 93.5% which are included in the very feasible criteria. Based on the results of the supplementation effectiveness test, students' concept understanding showed that 77.14% of students had reached the minimum completeness category whereas, the health literacy index score showed that 94.2% of students had achieved an adequate health literacy index. These results show that the CO-MMUNE learning supplement prepared based on Covid-19 cases is valid and feasible for use in learning and is effective in increasing understanding of the concept of immune system material and literacy student health. The use of health problems as learning materials in the classroom will provide a good understanding of health so that it has the opportunity to become a means of increasing health literacy.
Highlights
Teaching materials are a set of learning materials / tools that contain information, tools and texts used by teachers and are arranged systematically to support learning activities (Kelana & Pratama, 2019)
COMMUNE is prepared by combining understanding the concept of the immune system and the latest phenomena related to Covid-19 infection cases
In the CO-MMUNE supplement, there is a detailed concept of the immune system material covering the mechanism of action of the immune system which is divided into the innate immune system and the adaptive immune system
Summary
Teaching materials are a set of learning materials / tools that contain information, tools and texts used by teachers and are arranged systematically to support learning activities (Kelana & Pratama, 2019). Competencies (KI and KD) that have been determined by the curriculum are the main foundation to be able to compile good teaching materials. Teaching materials with components that are in accordance with competency standards will support the achievement of competence by students. The suitability of a teaching material with the competencies that must be achieved and the accuracy of the concept of the material presented is one aspect that shows the criteria for a good learning resource (Ritonga et al, 2022). Teaching materials that are developed and used according to student needs will make learning more meaningful so that teaching materials should contain concrete learning materials and close to students (Devi et al, 2020)
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