‘Ivy + Bean, the Musical’

Ivy and Bean aren’t a pair of plants: They’re two little girls who are the creation of Annie Barrows, whose popular book series about their exploits consists of 10 adventures. Now Atlantic for Kids, the children’s wing of the Atlantic Theater Company, is presenting the New York premiere of Scott Elmegreen’s musical adaptation of the books. The hourlong show deals with how these second graders — the quiet, contemplative Ivy and the boisterous, extroverted Bean — become the best of friends, even though, at first meeting, they’re positive they can’t stand each other.