Background: To succeed in school, young children must acquire the domain and vocabulary knowledge needed to read complex texts. Despite the growing literacy demands in the 21 century, fewer than 5% of US school children in the early elementary grades can evaluate complex nonfiction texts and there are larger gaps based on family income and student…

Project Clarion, a Jacob K. Javits-funded project, focused on the scale-up of primary-grade science curricula. Curriculum units, based on an Integrated Curriculum Model (ICM), were developed for high-ability learners, but tried out with all students in Title I settings to study the efficacy of the units with all learners. The units focus on the…