The EdWeek story quotes from her self-published "Fearless Math" manual. In it, she asserted that most students, particularly those at risk, "learn most naturally and best through play, songs, patterns, movement, imitation, imagination, and rhythm." Her method incorporated all those elements, the story explains. Ball insisted there's nothing wrong with drills—as long as they're presented in a fun and engaging manner. "Drill won't kill," she liked to say. "Boredom is the killer."