Instructional Videos
Khan Academy is an online video website with instructional videos on virtually every math topic known to humankind.
Brightstorm is another great site.
Math in the Movies
Here is a link to some clips of movies that have math in them.
Math Doodling
Great math doodles!
Free Scientific Calculator For Your Phone
The calculator that comes standard with your phone is usually junk. Here are some good ones you can download from the Apple Store and Google Play. If you have some other good ones, let me know and I will add it to the list.
Web Based Scientific Calculator
App Store (Apple)
Calculator#
Google Play
FX Calculator 350es 84+
HiPER Scientific Calculator
Online Algebra Tiles