Effectiveness of Triangle Congruency (Tricon) Learning Guide in Improving the Proving Skills of Grade 8 Learners Journal title: International Journal of Social Science And Human Research Authors: Kemeel D. Capili, Victoria E. Tamban, Alberto D. Yazon, Sherwin B. Sapin, Karen A. Manaig Subject(s): Economics, Humanities, Law, Social Sciences, Literature, Sociology of Education, Criminology, Public Administration