LEADER 00967nam a2200253 i 4500
001 991000479849707536
005 20020506130935.0
008 981215s1997    fi            ||| | eng  
020   $a9514575911
035   $ab10706471-39ule_inst
035   $aEXGIL146419$9ExL
040   $aBiblioteca Interfacoltà$bita
100 1 $aPehkonen, Erkki$0454837
245 10$aUse of open-ended problems in mathematics classroom /$ced. Erkki Pehkonen
260   $aHelsinki :$bUniversity, Department of teacher education,$c1997
300   $a130 p. ;$c21 cm.
490 0 $aResearch Report ;$v176
650  4$aMatematica - Insegnamento
907   $a.b10706471$b23-02-17$c28-06-02
912   $a991000479849707536
945   $aLE002 Ped. II C 18$g1$i2002000490421$lle002$o-$pE0.00$q-$rl$s-  $t0$u0$v0$w0$x0$y.i10802034$z28-06-02
996   $aUse of open-ended problems in mathematics classroom$9909142
997   $aUNISALENTO
998   $ale002$b01-01-98$cm$da  $e-$feng$gfi $h0$i1