A look back on the 2017 NMLSTA/NSTA Meet Me In The Middle Day, by Kathy Biernat: http://nstacommunities.org/blog/2017/06/07/nsta17-meet-me-in-the-middle-day-re-cap/
National Middle Level Science Teacher's Association
"NMLSTA" is a 501(c)3 non-profit organization.
NMLSTA