Master in Psychology, Utrecht University, Netherlands, 1978. Doctor of Philosophy Vrije University, Free University, Amsterdam, Netherlands, 1987. Doctor (honorary), University Jyväskylä, 2004.
Teacher Vrije University, Amsterdam, 1978—1999, associate professor, 1999—2004, professor educational psychology and curriculum theory, since 2004.
Cofounder Academy Developmental Education, Alkmaar, Netherlands, 1989. Member of European Association Research in Learning and Instruction, American Educational Research Association.
Son of Petrus van Oers and Anna Roelands. Married Adrienne Mutsters, August 24, 1977. Children: Pieter Van Oers, Sophie Van Oers.