A principal from the local Catholic elementary school reached out to us and asked that we come do an outreach education for the children in the School. I think this can be a great platform to teach them about the 7 Mitzvos Bnei Noach. Are we are allowed to go into their building?
One may not enter a Catholic School even for a purpose like this.
ש”ך יו”ד קמט, א. שו”ע קנ, א.