TY  - BOOK
AU  - Cockcroft,Wilfred Halliday
TI  - Your child and mathematics
AV  - QA135.5 C6.8 
PY  - 1968///
CY  - London
PB  - Chambers and John Murray
KW  - Matemáticas
KW  - Estudio y enseñanza (Elemental)
N1  - "A short survey of the aime and methods of modern mathematics teaching of five - to thirteen year - old children, written particularly for parents, in association. With the nuffield mathematics project"
ER  -