(N|LEMENTY POLITEHNI^ESKOGO OBU^ENIQ W PREPODAWANII BIOLOGII (B/s - (N}UKIN(B, (Ns(B.(Nw(B.s; (NiNSTITUT TEORII I ISTORII PEDAGOGIKI apn rsfsrs ((NmOSKWA (B:s (NiZD(B-(NWO apn rsfsr(B,s, 1953)
Keywords: (NpEDAGOGIKAs