Teachers' Perceptions of What Makes Instructional Materials Engaging, Appropriately Challenging, and Usable: A Survey and Interview Study

   Elaine Lin Wang, Andrea Prado Tuma, Sy Doan, Daniella Henry, Rebecca Ann Lawrence, Ashley Woo, Julia H. Kaufman

   RAND Corporation

 09/2021 

https://www.rand.org/content/dam/rand/pubs/research_reports/RRA100/RRA134-2/RAND_RRA134-2.pdf