Get your kids' brains firing on all cylinders in time to go back to school with these FREE Math Skills apps. A new math and handwriting app for preschoolers is 123 Tracing HD from Kiddie Academy. Kids learn numbers and practice tracing them in a fun game. Download it free at iTunes through July 23. The Lite Version is always free. Click for the Android version. Scholastic's new Sushi Monster app helps kids ...
