ABSTRACT DESCRIPTION OF KNOWLEDGE AND ACTION ON COVID-19 HEALTH PROTOCOL IN FACE-TO-FACE LEARNING PERIOD IN STUDENTS OF SMPN 20 MEDANG KAMPAI DUMAI By Gilbert Samuel Padang Background: Since 2022, the government has adopted a policy to conduct face-to- face learning. In the implementation of face-to-face learning, the government establishes a health protocol in schools as a government effor…