Core Knowledge Language Arts® (CKLA) is a comprehensive program (Preschool–Grade 5) for teaching reading, writing, listening, and speaking while also building students' vocabulary and knowledge across essential domains in literature, world and American history, and the sciences.

Based on research funded by the National Science Foundation (NSF), Math Expressions is a proven Pre-K–6 curriculum that helps children make sense of math by exploring, discussing, and demonstrating their understanding of key concepts. In busy, active lessons, students learn how to look deeper and choose their own path to the answers—skills that will take them far beyond the math classroom.

Exploring Where & Why gives students rich experiences that encourage them to discover for themselves an increasingly sophisticated set of concepts and skills.

Built on the 5E lesson model, STEMscopes Science combines research-based teaching strategies with the invaluable insight of real-life educators to provide a carefully curated, rigorous curriculum that both challenges and sparks the curiosity of students across the country.