Opponenents of constructivism claim that students are unable to construct their own knowledge without the necessary background experiences when students enter introductory science classes,they rarely have relevant and correct experiences with the topic.thus letting the student loose in the classroom will only result in an increase in misconceptions. often times teachers spen as much time,if not more trying to clarity misconceptions than they do teaching actual content student who lake the nessary background knowledge will not only perpetuate their misconceptions,they will grfound their conclusions in false pretense, discovery learning could actually be a drtriment to lerning upon further investigation mayer introduced the universally beneficial middle ground;guided inquiry