Another great is maria miller's videos.
Here's fractions.
http://www.mathmammoth.com/videos/fractions_1.php
Here's multiplication using skip counting on a number line.


Ask your GT teacher to sign up for Manga High . com. It's free for schools but parents can only get a short free trial or buy a subscription. Nifty. Neat. and. Cool

Youth lives by personality, age lives by calculation. -- Aristotle on a calendar