This article is a preface to a special issue of the Journal of Mathematics and Science: Collaborative Explorations which features articles that describe (a) online components of mathematics specialist preparation and mentoring programs, (b) the mentoring and support of teachers preparing to serve as mathematics teacher leaders, and (c) the subsequent service of mathematics specialists in leadership roles. This preface describes the context within which the described online activities took place, provides a common glossary of terms that will be used consistently across all the articles, and briefly introduces each of the fourteen papers that constitute the special issue.
Baker, Courtney K.; Ellington, Aimee J.; and Haver, William (2021) "Mathematics Teacher Leadership Preparation, Mentorship, and Service: Communities of Practice Through Online Modalities," Journal of Mathematics and Science: Collaborative Explorations: Vol. 17 : No. 1 , Article 2.
Available at: https://scholarscompass.vcu.edu/jmsce_vamsc/vol17/iss1/2