Children may be like sponges when it comes to language learning, but the key to having them develop into active bilinguals in all their languages is to make it fun and useful in the daily life.

Be Bilingual is full of practical and creative ideas, backed up by the latest research, that help families in different multilingual situations make juggling two or more languages an enjoyable experience

Annika Bourgogne

published in 2013

Colin Baker, 2014,  A Parents' and Teachers' Guide to Bilingualism 

(ma critique ici - my review here)