*0011578413 *008910205s1990 xx# 000 0 nob *019 $bk *08230$a745.07 *100 $aGrinder, Brede$_163913100 *245 $aProblemløsning = forming$ctekst: Brede Grinder *300 $aS. 8-11 *773 $tForming i skolen$gÅrg. 24, nr 4 (1990)$x0333-2217$w(NO-LaBS)791202(tnr) *999 $z9100126262$anorart:9100126262 ^