Idiom:
Like wildfire ( spread quickly)

Hit the book:
PERFORMANCE:
As the adults arrive on the day of the trip hand them the packet which you prepared for them. If you will not be all together in one location during the field trip be sure to designate a meeting location and specify the time that everyone is to be there. Verbally detail all of the rules and expectations of the trip and answer any questions and concerns that the parents have.