whAt DoEs thE Author think is thE BEst wAy For ChilDrEn to lEArn things
A．By mAking mistAkEs AnD hAving thEm pointED out By othErs.
B．By hAving thEir mistAkEs CorrECtED.
C．By notiCing thEir proBlEms AnD mAking ChAngEs.
D．By listEning to ExplAnAtions From skillED pEopl