Screen Capture on iOS, Android and Mac

**UPDATE:

This video was created prior to the release of some really great iOS apps for screencasting.

 


How to change a mixed fraction to an improper fraction


Adding and Subtracting Fractions


Adding and Subtracting Mixed Fractions


Metric Conversions from tera to pico


Conversion from km/h to m/sec


Metric conversions from kilo to milli