Mothers can make children study more efficiently than teachers

I read one of the wikipedia style work 'Analytical wiki' in the public domain. I do not know what the authors are addressing through the work. But, I find it is more useful in teaching my kids. It has beautiful illustrations of fruits and objects of everyday use. You can find that work here: Analytical Wiki

Try one example each day. It is excellent. Kids pick up the scientific concepts quickly.

However, there is nothing wrong in using it for our good purposes of making kids think efficiently.

Try your luck.
~ Soundaryanayaki