a lovely song titled "I Love Charts", from the SID The Science Kid episode "The Sticker Chart."
one can sing along (it is quite a sticky melody) with Teacher Susie's song about how charts are "handy dandy" scientific tools! charts can be used to compare & contrast data & to visualize the big picture during your investigations. "from weekly weather charts to pie charts to bar graphs, charts totally rule!"
(I guess that PBS Science Kid will now become known at introduction information visualization lectures worldwide)
if you like this, you will also like Sesame Street visual thinking.