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I'm sorry I wasn't more clear in my first comment.

What I mean to ask is: is there a particular target age for the educational material? Such as, under age 5 or a range of ages like 10-15?
Thanks!

Any age any topic just as long as kids or teachers could benefit from this. No matter what the age! LOL! I should have read that more clear...I am a teacher so I should have been able to guess that is what you asked...sorry!!!