00435nam a2200133Ia 4500008004100000100002200041245008900063245003800152260004000190260000900230300002600239650001400265650002200279170224s9999 xx 000 0 und d aVicki-Lynn Holmes aExploring the effects of project-based learning in secondary mathematics education  cVicki-Lynn Holmes & Yooyeun Hwang bThe Journal of Educational Research c2016 a109:5, Pages: 449-463 xEducation xSpecial Education