  The San Antonio Teacher Training Astronomy Academy (SATTAA) completed its
fourth annual iteration in June 2021 . While the program began as a
face-to-face professional development opportunity for future and current school
teachers, it transitioned to a fully online opportunity in 2020. In our efforts
to offer an astronomy education program that is inclusive and particularly
attentive to highly diverse populations, the transition to online programming
became a core aspect of scaling up the program. The 2021 iteration featured an
international facilitation team, and, for the first time, supported teachers
from across the State of Texas. In this paper, we share data on how the
facilitation team transitioned from a local to an international group, and on
how the participant pool expanded from local to state-wide.
