Alfel Dan Opena is an experienced educator currently serving as a Junior and Senior High School Mathematics Teacher at St. Mary's School since June 2016, and as a Lecturer at Peak Excellence Review Center, Inc. since January 2016, where lectures and reviews for professional careers and skills are conducted. Alfel Dan Opena holds a Bachelor of Secondary Education in Mathematics from Cagayan de Oro College (2011 - 2015) and is pursuing a Master of Science in Teaching Mathematics at the University of Science and Technology of Southern Philippines since 2017.
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