SDE was founded in Peterborough, New Hampshire, in 1986 by Jim and Lillian Grant with the original goal of providing New England teachers the opportunity to learn the best techniques from the best teachers in the region. Motivated by Jim’s personal goal of helping to create classrooms where all students can succeed, SDE has grown to become one of the nation’s leading providers of professional development for PreK through grade 12 educators and administrators.

Since 1991, SDE has been a proud member of a family of companies owned by Highlights for Children, Inc. From magazine, trade-book, and textbook publishers to educational seminars for teachers, all members of the Highlights family of companies make a significant contribution to the education of children.

The Highlights Family of Companies

Highlights for Children, Inc.


    Founded in 1946, Highlights for Children, Inc., is dedicated to the belief that children are the world’s most important people. Every Highlights product helps children become their best selves and become confident, caring, curious, and creative individuals.

Zaner-Bloser Educational Publishers


    Founded in 1888, Zaner-Bloser is a premier publisher of research-based handwriting, reading, spelling, writing, and vocabulary programs for pre-kindergarten through eighth grade. The company strives to create high-quality, dynamic, and appealing educational programs and services that inspire all students to become engaged, literate citizens. Ever able to adapt to the changing educational landscape, Zaner-Bloser Handwriting has been a national institution for several generations and the company continues to grow through the addition of technology products.

Stenhouse Publishers


    Founded in 1986, Stenhouse publishes books and videos that help K–12 teachers enhance their professional knowledge and build their students’ skills as readers, writers, and thinkers. All of Stenhouse’s titles, from reading and math comprehension to classroom management, are grounded in a philosophy of education that respects both teacher and learner and are designed to integrate theory, research, and practice in an accessible manner.

Boyds Mills Press


    Founded by Highlights in 1990, Boyds Mills Press publishes high-quality picture books, fiction, nonfiction, poetry, science, history, and activity books for children of all ages.
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