Guided Play: Principles and Practices Deena Skolnick Weisberg, Kathy Hirsh-Pasek, Roberta Michnick Golinkoff, Audrey K. Kittredge, David KlahrDavid Klahr, June 2016, Current Directions in Psychological Science 25(3):177-182 DOI: 10.1177/0963721416645512 → “these studiesdemonstrate that there is a vast pedagogical space betweenthe stark dichotomy of free play and direct instruction”