This article examines the professional knowledge required for mathematics teachers to effectively use generative artificial intelligence (GenAI) in planning high-quality, ambitious mathematics lessons. While GenAI tools like ChatGPT offer promise for automating parts of lesson planning, their utility in supporting ambitious instruction is limited…

Expanding on the extant body of research on content validity, this study applied the tenets of content validity research to the development of an expository book reading intervention focused on science for preschool students with language impairment. This example case explains how, guided by content validity research in healthcare interventions,…

Empirically supported multimedia learning (MML) principles [1] suggest effective ways to design instruction, generally for elements on the order of a graphic or an activity. We examined whether the positive impact of MML could be detected in larger instructional units from a MOOC. We coded instructional design (ID) features corresponding to MML…

This article describes the importance of vocabulary knowledge in adolescents' reading comprehension, particularly for students with disabilities. Students with stronger vocabularies tend to have better background knowledge and improved understanding of content-area texts. We describe evidence-based vocabulary instructional practices that…