Say you were making kits for scouts going into the woods for a few days; aside from instruction and equipment, what four pages of info would you include in each kit?

What level of scouting - tender feet or explorer? Probably want to include key nfo about the area they will be in, something about water purification, how to build a fire safely, the importance of signalling if in trouble (this will vary depending if they are in cell phone range)and the most effective ways of signalling. Stress that if lost or confused, it is probably best to stop, get some rest, and try to figure out the situation (not always possible in all environments)

Map with roads, hazards, water sources, hospitals, etc. marked.
List of phone numbers for emergency services, participant/ parent phone numbers.
How to find/make shelter in the location and season for the area.
STOP (Stop, Think, Observe, Plan) ABC's (Airway,Breathing,Circulation, Spine/Shock)
mnemonics

Are you limited to 4 pages? Whu? How about a video loaded onto their phones?

Video is fine, but assumes they have a change, remember that they have it, can find it, etc.