01025nam a2200289Ia 4500 134147 BIBL 20160527192634.0 921106m19871986sp a 000110 spa buc92000977 8432080225 spa eng BUCG 372.72 H894c E v c BF723.N8 H8418 1987 372.72 H894c E Hughes, Martin. Local 113018 Los niños y los números las dificultades en el aprendizaje de las matemáticas Martin Hughes ; translated by Juan-Andrés Iglesias. Barcelona Editorial Planeta 1987. 240 p. ill. Nueva Paideia Local 143704 Translation of: Children and number: difficulties in learning mathematics. Includes index. Bibliography: p. [229]-233. feb/91 20.80 Number concept in children. Local 143768 Mathematical ability Study and teaching. Local 132743 113248 113248 0 0 lc 0 BF_723_000000000000000__N8_H8418_1987 0 mbl 182538 12 12 20 2016-05-27 J.W. Enterprises 20.80 203631 0 BF723 .N8 H8418 1987 50000001892156 2016-05-27 00:00:00 r:134147 z:NCC:D 6 0 0 ddc 0 372_720000000000000_H894C_E 0 l 182543 1 1 17 2016-05-27 329270 0 372.72 H894c E 60000010000179 2016-05-27 00:00:00 r:134147 6 0 0 ddc 0 372_720000000000000_H894C_E 0 evl 182548 10 10 1 2016-05-27 gift-Guayama 419226 0 372.72 H894c E 80000002347014 2016-05-27 00:00:00 r:134147 6