Dr. Sublett served as a Senior Syllabus Reviewer for the College Board’s APHG syllabus audit beginning in 2006 and the Curriculum Advisor beginning in 2009. Overall, in these roles, which concluded in 2019, he reviewed nearly 900 high school syllabi.
Working with the Illinois Geographic Alliance, beginning in 2013, Dr. Sublett assisted with the organization of and coordinated APHG teacher workshops in the Chicago suburbs. Cooperating locations were Stevenson, Plainfield East, and Conant high schools.