Early Learning

These delightful titles build early-language, movement, and social-emotional skills.

TDI Mobile Image


Get children excited to read and learn with irresistible nonfiction titles for grades 1–6.

TDI Mobile Image TDI Tablet Image

Middle/High School

Supplement your curriculum with these complete print & digital teaching packages for grades 6–12.

TDI Mobile Image

Secondary Foreign Languages 

Immerse your students in languages from around the world.

TDI Mobile Image

Professional Learning 

Brilliant ideas from real teachers—delivered!

TDI Mobile Image