To get to "Zurich Main Station": You can take all Trains from plattform 3 and 4 to "Zürich Hauptbahnhof", these are the S2, S16, S24, IR, IC, ICN. Then take the trams from Zurich Main Station to your destination
To get to "Central", "Haldenegg" or "Haldenbach" tram stop: Tram 6 (direction "Zoo") or 10 (direction "Zürich Flughafen")
To get to "Kantonsschule" tram stop and the Conference Venue: Tram 6 (direction "Zoo") or 10 (direction "Zürich Flughafen") from "Zürich Bahnhofplatz/HB" to "ETH/Universitätsspital" and then change to tram 9 (direction "Heuried") to tram stop "Kantonsschule".
Current connections can be accessd on: SBB Schedule
It also shows the directions, when an adress is entered