Handy math reference gives bite-sized explanations.
Comprehensive, fee-based math program has some rough edges.
Good practice with counting, vocab in concept-building app.
Customizable, picture-based weather app great for everyone.
Colorful piano game for little hands is big fun.
Millions of user-generated flashcard sets; some can be iffy.
Useful study tool's online database has some iffy content.
Progress tracking a nifty feature in fun tot-test app.
Tricky and sometimes violent riddles best for tweens and up.
Customizable, low-pressure way for tots to practice shapes.
Party environment provides fun way to teach toddler skills.