Associate Professor Tasanee Siriwan (Project Director), Assistant Professor Dr. Janchai Yingprayoon (Science Specialist), Dr. Kanokrat Kunasaraphan (English Specialist), and Mr. Luechai Tiprungsri (Mathematics Specialist) monitored and participated in On-Site Workshop for deep understanding about Pedagogical Content Knowledge (PCK). Moreover, SSRUIC team members collected the data using online survey questionnaire and the results showed that the participants improved their skills in creating online lessons. The suggestion for conducting future project should cover other subjects and higher levels.