01131nam a2200277 i 450099100415822970753620020506114437.0981215s1998 fi ||| | eng 9514579240b10615295-39ule_instEXGIL134694ExLBiblioteca InterfacoltàitaAhtee, Maija470977Research methods in mathematics and science education /eds. Maija Ahtee and Erkki PehkonenHelsinki :University, Department of teacher education,199891 p. ;21 cm.Research Report ;185Matematica - InsegnamentoMetodiScienze - InsegnamentoMetodiPehkonen, Erkkiauthorhttp://id.loc.gov/vocabulary/relators/aut454837.b1061529523-02-1728-06-02991004158229707536LE002 Ped. II C 2112002000490452le002-E0.00-l- 00000.i1070198928-06-02Research methods in mathematics and science education1446397UNISALENTOle00201-01-98ma -engfi 01