Join Baltimore Bicycling Works Tuesday, December 20th, at 7pm for their monthly flat repair class. These classes are FREE and open to all.
The class covers the basics of removing a wheel, removing your tire, assessing what gave you the flat, repairing the flat, and reinstalling the tube, tire and wheel. As well as some other basic roadside repair basics.
https://www.baltimorebicycleworks.com/blog/flat_repair_class_tuesday_december_20th/