How to prime kids to learn 3+ languages?

We’re looking for methodologies and materials to prime child from 3
month of age for multiple language acquisition.

I remember being exposed to multi-language priming in first grade.
However I can’t find any structured materials.

Now I’m raising my own son whom we’d like to prime for these
languages:
French, Spanish, Arabic, Mandarin, German, Russian, Japanese,
Portuguese, and English.

Unfortunately, we speak only 4 

If anyone knows of any good sources or other materials, or systems –
please let us know.

Any feedback is highly appreciated.

.

Relevant Pages

  • How to prime kids to learn 3+ languages?
    ... We're looking for methodologies and/or materials to prime child from 3 ... month of age for multiple language acquisition. ... I remember being exposed to multi-language priming in first grade. ... However I can't find any structured materials. ...
    (misc.kids)
  • How to prime kids to learn 3+ languages?
    ... We’re looking for methodologies and/or materials to prime child from 3 ... month of age for multiple language acquisition. ... I remember being exposed to multi-language priming in first grade. ... However I can’t find any structured materials. ...
    (sci.edu)