Graham, C. R., Borup, J., Jensen, M., Arnesen, K. T., & Short, C. R. (2022). Appendix B: Research. In B. Joskow, J. Borup, C. Chambers, & N. Sandrowicz (Eds.), K-12 Blended Teaching: Elementary Education Edition. EdTech Books. https://edtechbooks.org/k12blended_eled/researchn