Choose the wrongly paired option:
AArmstrong : Heuristic method
BHelen Parkhurst : Dalton plan
CPaulo Freire : Problem solving method
DWilliam H. Kilpatrick : Project method
AArmstrong : Heuristic method
BHelen Parkhurst : Dalton plan
CPaulo Freire : Problem solving method
DWilliam H. Kilpatrick : Project method