You're going to cover all that in 90 minutes? Seems like a lot unless you're going to rattle through the topics briefly at high speed.
What is cycletouring - travelling on a bicycle
Why tour - for fun, to see stuff, to go somewhere, or to meet a goal
Where to tour - wherever you want ... locally, elsewhere in your country, in another country
How far - as far as you want (day tours, overnight tours, weekend tours, long weekend tours, week-long tours, longer tours, hub-and-spoke tours)
Equipment - bike, tools, clothing (note that in many cases you can buy stuff along the way)
Equipment - camping, tent, sleeping stuff (note that you don't have to camp to cycletour ... you can choose a hub-and-spoke option, or stay indoors in hostels, B&Bs, inns, hotels, etc.)
Food - whatever you can find along the way, experiment with local cuisine
Overnight options - hub-and-spoke, camping, staying indoors
Navigation - good ol' paper maps found in tourist information centres, bookstores, sporting good stores, etc. Tourist information centres (found all over the place) are often a wealth of information about what to see and where to go. And google maps can help a bit
Cost - depends what you want to do
Safety - ride predictably, in a straight line
Was that pretty much where you were heading with your plan?