Research ArticleOpen accessCognitive Development of College Students and their Achievement in Geometry: An Evaluation using Piaget’s Theory and Van Hiele’s Levels of ThinkingRonald Sumaya DecanoAmerican Journal of Applied Sciences, Vol. 14, Issue 9 · 23 Sep 2017 · 9,906 accessesView PDFCite
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1 article in our journalsRonald Sumaya Decano
Institute of Education Davao del Norte State College, New Visayas, Panabo City, PhilippinesArticles where this person is an author, newest first. People are matched by their name as printed (no ORCID iD is recorded for them), not by name alone; search the name as text to find namesakes too.