Research indicates that state pre-k programs with higher teacher qualification requirements improve children's school readiness so states get the most out of their investment in early education. This 2010 report, authored by Marisa Bueno, Linda Darling-Hammond and Danielle Gonzales, reviewed research on training for pre-k teachers and concluded that educators with at least a bachelor's degree coupled with specialized training in early childhood are best able to foster development of the cognitive, social and emotional skills children need to be ready for kindergarten. Individual sections contain footnotes. (Contains 1 figure and 65 endnotes.)