%0 Journal Article %A fakouri, hosein, nadi, ezatallah, shariyatmadare, ali, seif, maryam %T A Study on The Contents Of Experimental Science Books In Primary Schools On The Basis Of Thonght-training Principles %J Educational researches %V 3 %N 12 %P 1-26 %D 2007 %R %U https://sanad.iau.ir/fa/Article/941153