Bilingual Household Planner
Which parent speaks which language when, and the weekly exposure hours that actually result — usually far below what families assume.
Bilingual acquisition research commonly cites about 30% of a child's waking language input as the threshold for active fluency rather than passive understanding, and a one-parent-one-language household typically falls well below it once school starts.
Bilingual Household Planner
Frequently asked
Does bilingualism delay speech?
No. Bilingual children reach speech milestones within the same normal ranges as monolingual children. Their vocabulary in each single language may be smaller for a period while their combined vocabulary is comparable or larger, and this is a well-established finding rather than a cause for concern.
Why does my child understand but not speak the language?
This is called receptive bilingualism and it is extremely common, usually reflecting input that is enough to comprehend and not enough to produce. It is also reversible: children who answer in the majority language for years frequently start speaking the other one after an immersive stay.
Does mixing languages in a sentence cause problems?
Code-switching is a normal feature of bilingual speech in children and adults, not confusion. The evidence does not support the older advice that parents must never mix — consistency helps input volume, but a mixed sentence is not damage.
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