Our editors cut their teeth in the classroom and at leading PK–12 content development companies such as Houghton Mifflin Harcourt; Holt, Rinehart, and Winston; Holt McDougal; Brown Publishing Network; Little Brown & Company; Microsoft Press; Pearson; and Scholastic, as well as schools and start-ups.

Competency-based learning or competency-based education (CBL) is an approach based in student mastery of specific skills. This straightforward mandate is already disrupting higher education and professional development practices as classrooms are blended with—or replaced by—a personalized learning model that requires new types of student and system management.