In no particular order:
- General
- How to prepare for kickoff (getting their lab organized, setting a meeting schedule, etc.)
- Depending on their size, stratification of subteams
- How the regional/district systems work
- What to expect at competition
- General itenerary (Quals, Alliance Selection, Elims)
- Practice Field Availability
- Queuing System
- Ranking System
- A list of good suppliers
- McMaster-Carr
- AndyMark
- VEXpro
- BaneBots
- igus
- etc.
- Mechanical/Design
- Resources like JVN's Mechanical Design Calculator and Copioli's Useful Calculations Sheet.
- How to break and join chain
- If applicable, how to CAD
- Depending on their resources, the proper use of whatever large machinery they may have access to
- How to properly use power tools such as drills or jigsaws
- Maybe a link to Kitbot on Steroids
- A crash course on pneumatics
- How to tap holes
- How to rivet
- How to broach
- How to properly use and maintain calipers
- How to make nice bumpers
- Electrical
- In general, what everything in the control system does.
- How to clean up a battery spill
- How to solder
- How to crimp
- Chairman's
- What it actually is
- Some examples of previous winners
- An explanation of different FIRST buzzwords like coopertition and gracious professionalism
Of course, it's a bit difficult to come up with stuff without knowing exactly what the resources of the team are.
Regardless, I hope this helps!