PENGEMBANGAN APLIKASI PEMBELAJARAN BERBASIS AR (AUGMENTED REALITY) MARKERLESS (TANPA PENANDA) MATERI SISTEM REPRODUKSI MANUSIA UNTUK SISWA SMA KELAS XI PADA MASA PANDEMI COVID-19

Based on data from observations of problems in Biology learning carried out at SMAN 1 Lawang, it is known that teachers are accustomed to using the torso as a teaching aid in explaining the material because most of the material in class XI is organ system material. As for supporting teaching and learning activities, teachers use various media such as powerpoint (ppt) and video. However, the Covid 19 pandemic demands distance learning, causing learning that should use torso media cannot be carried out. In fact, 76% of students find it easier to learn organ system material in Biology if the teacher explains it with the help of the torso. This type of research is research and development. The design development model used in this research and development is from ADDIE from Branch (2009) which includes the process: 1) assessing or analyzing needs and early-late analysis, 2) designing, 3) developing, 4) implementing the developed media, and 5) evaluate the developed media. The application that has been developed is validated by material experts and media experts. The types of data in this research and development are quantitative and qualitative data. Quantitative data obtained from the validation score. Qualitative data were obtained from suggestions and comments from material experts and media experts. Based on the validation results from media experts and material experts, the percentages were 91.07% and 91.67%, respectively, which means that the developed application meets the very valid criteria