I'm a teacher . I want to know how can i teach to ...

Hi Yanet,

If you refer to Epals ; you should give each one of your pupils his own email .The advantage of this site is that you can monitor whatever they write or even receive from other pupils.

If you refer to Ask Epals I think that it is mainly for us, teachers to use among us.

Good Luck 

Hagit

You can go for some interactive modules which may help K12 peoples to learn or to get educated with entertainment. There are so many types of online education that comes with flash interactions for small kids up to K12 section.

Try this site for your reference...

NETed Learning Solutions

NETed Client site

Watch out the iLG library they have. They also do for Kids with more interactions.