In an era of social media, and amid the coronavirus pandemic, teachers' curation of instructional resources stands as an opportunity to observe teachers' planning and conceptualization of their practice in real time. This work explores the resources teachers curate, their rigor, and the effects on students' learning across years. Merging big data…

Examines effects of Indiana's project PRIME TIME on reading and math achievement test scores of second graders who completed 2 years of the reduced-class-size program. Analysis of 3,967 test scores suggests that students in small classes had higher test scores than did students in large classes. (RJC)