Philosophy for Kids: 40 Fun Questions about Everything... David White, 2001.
Big Ideas for Little Kids: Teaching Philosophy through Children’s Literature. Thomas E. Wartenberg, 2009.
The If Machine: Philosophical Enquiry in the Classroom. Peter Worley, 2011.
Philosophy for Young Children: A Practical Guide. Berys and Morag Gaut, 2011.
An Illustrated Book of Bad Arguments. Ali Almossawi, 2014.
Provocations: Philosophy for Secondary School. David Birch, 2014.
The Philosophical Child. Jana Mohr Lone, 2015.
Center for Philosophy for Children, UWash. (Contains lesson plans!)
Iowa Philosophy Lyceum, UIowa. (Workshop!)