
1) Academic protest 2) Campus-based 1960s protest 3) Faculty protest 4) Forum on a political issue
Found on
https://www.crosswordclues.com/clue/teach-in

A teach-in is similar to a general educational forum on any complicated issue, usually an issue involving current political affairs. The main difference between a teach-in and a seminar is the refusal to limit the discussion to a specific frame of time or an academic scope of the topic. Teach-ins are meant to be practical, participatory, and orien...
Found on
http://en.wikipedia.org/wiki/Teach-in

Father Damien, formally Jozef de Veuster, (January 3, 1840 - April 15, 1889), was a Flemish Catholic missionary of the Congregation of the Sacred Hearts of Jesus and Mary who is revered primarily by Hawaii residents and Christians for having dedicated his life in service to the lepers of Molokai in the Kingdom of Hawaii, which ultimately led to hi...
Found on
http://en.wikipedia.org/wiki/Teach_in

[
n] - an extended session (as on a college campus) for lectures and discussion on an important and usually controversial issue
Found on
http://www.webdictionary.co.uk/definition.php?query=teach-in
noun an extended session (as on a college campus) for lectures and discussion on an important and usually controversial issue
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.