Kids and parents who use our flashcards for practice testing are using one of the most effective learning techniques available. A hundred years of research shows practice testing is highly likely to boost retention. Learning skills through gameplay is an excellent strategy for many reasons. They are fun and motivating, and games also tend to help students deepen their understanding and reasoning. Because games feel more like play than work, they can encourage kids to explore and experiment with concepts more freely and can reduce the stress of viewing schoolwork as nothing more than problems.