00944nam0-22003251i-450-9900013500204033210-7923-1282-1000135002FED01000135002(Aleph)000135002FED0100013500220000920d1991----km-y0itay50------baengFractions in realistic mathematics educationA Paradigm of Developmental ResearchLeen StreeflandDordrecht (NL)Kluwer1991ix, 354 p.ill.25 cmMathematics Education Library8MatematicaInsegnamento372.7Streefland,Leen60910ITUNINARICAUNIMARCBK990001350020403321122-D-3114949MA1MA100A3511-01Fractions in realistic mathematics education376188UNINAING01