Walmart offers the LEGO Ideas Women of NASA Building Kit for $19.97. Choose in-store pickup to avoid the $5.99 shipping fee. That's tied with our August mention as the lowest price we've seen. (It's the best deal now by $5.) It includes Nancy Grace Roman, Margaret Hamilton, Sally Ride, and Mae Jemison minifigures among displays representing the Hubble Space Telescope, Apollo Guidance Computer, and Space Shuttle Challenger.
Teaching can be tough, but the life of a K-12 educator depends a lot on where you live.