Bedtime stories that quietly teach a language
Evening reading is the one slot that actually survives the week in most families. That makes it the best place for a second language.
There is one condition. It must not become a task.
Why bedtime in particular
Before sleep the child is calm, attention is on one thing, and the ritual repeats every day. Those are three things language learning rarely gets otherwise.
On top of that, what is heard just before sleep is retained somewhat better than the same material in the middle of the day.
The same story, the same order
Let the child choose, and let them choose the same one. Once the plot is familiar, the child stops tracking what happens next and starts noticing how it is said.
That is when the first sentences appear, spoken along with the narrator, usually the ones at the end of a page.
Short is better
One story, ten minutes. If the child asks for more, it is better to stop at the high point than to read to exhaustion.
The goal is that they want it again tomorrow. Length does not build vocabulary, coming back does.
No quizzing
Questions like "how do you say that in English" turn a ritual into a test. The child will then pick the story in the language where there is no exam.
If you want to check understanding, point at the picture and let the child say it. No marks, no correcting the pronunciation.
Two languages in one evening
Some parents read the same story twice, once in each language. It works with younger children but it doubles the ritual.
Alternating evenings is simpler. One evening in the home language, the next in the language being learned, always the same story.
Every story in Kiara is read aloud in 14 languages, so the language changes without the story changing.