Resources for kids education Most of the questions on MSE about educational resources are for high school. At least I haven't found questions which deals with sites on very elementary mathematics. 
I will be grateful if someone provides me with list of educational resources for kids - e.g. of the level of kindergarten, primary school and junior high school.
If you think that this question is not for MSE, tell me were is it appropriate to ask?

Though not a direct answer to your question, another resource you may be able to use is a university sponsored Math Circle program. They really are amazing and I am extremely jealous of those kids (I wish I got to go to a Math Circle when I was their age!). If you're not familiar with what it is, it's basically a program where your kids can go and learn mathematics they wouldn't normally be exposed to in school, with peers of their age.
To give you an example, at UCLA (where I attend) the fifth grade age group learned basic abstract algebra, cryptography, and fundamentals of proofs.
Check your local schools out! Math Circle Main Website
