This guide focuses on literary theory and cultural studies approaches to children's literature.
For resources on the use of children's literature in K-12 classrooms please consult the very helpful UVic Libraries' guide:
Education--Children's Literature in the Classroom.
For English literature resources more generally please consult the library guide:
English Language and Literature.
Your best source of information for an introduction to children's literature is your instructor or supervisor. Ask them for their recommendations of useful introductory resources.
Let me know if you have recommendations for additional resources to be listed on this guide.