Rainier G. De Jesus is a Grade 10 Science teacher from Manuel Luis Quezon High School (MLQHS) in Caloocan City. He is currently taking up his Master's Degree in Science Education at the University of Caloocan City. At present, he is the Coordinator of MLQHS Learning Resource Management and Development System (LRMDS). He just presented his paper last June 20, 2019 in the recently concluded Dela Salle University Research Congress 2019. He completed three Massive Open Online Course (MOOC) sponsored by Regional English Language Office (RELO) of the US Embassy namely: Content-Based Instructions (CBI), Teaching English to Young Learners (TEYL), and Teaching Grammar Communicatively (TGC). He is also an author of Science books (in press) for Grades 9 and 10 at St. Andrews Publishing House, Inc.