Without looking down, Kira runs her index finger across the screen of an Android tablet that she is holding in her lap. For the occasion, she has painted her fingernails bright pink. When her finger ...

They love to tap it, swipe it, and watch it, but can kids as young as four and five years old use tablets not just to view videos, or read books, but to learn math? Four-year-old Reuben loves to count ...