teaching Japanese to youngest learners

when I teach kids grade 3 -6
http://web-japan.org/kidsweb/
http://web-japan.org/kidsweb/say.html  (Nihongo)
http://web-japan.org/kidsweb/culture.html (bunka)

Nipponia [magazine], http://web-japan.org/nipponia/archives/en/
Japan Video Topics, http://web-japan.org/jvt/
Japan Links, http://web-japan.org/links/

Nickelodeon Japan, http://www.nickjapan.com
for vocabulary and reading-comprehension skills