This free online textbook might be helpful to you in many of your Child Development classes and work with children!
The Powerful Role of Play in Early Education
APA citation (double space and indent the second line):
California Department of Education. (2021). The Powerful Role of Play in Early Education [Ebook]. California Department of Education. https://www.cde.ca.gov/sp/cd/re/documents/powerfulroleofplay.pdf.