I've been contacted by a local education board who are organising a career fair focusing on IT.
One of the interesting elements of the day is a 30 minute interactive challenge that should be set for the students.
Has anyone had any experience with a similar event?
As there will be 25 students per session (3 sessions in total), I don't want anything over elaborate but also not so simple it is too quick.
As always suggestions are very welcome!