Light tackle, cork, bucket of minnows and drive around until you see boats stacked on top of each other and join them. They are simple to catch, finding them is the hardest part and still that's not bad. They school together so where there is one, there are many. If you see them on the depth finder they look like a Christmas tree on down image and a mass on 2D. On the lake look for long points as the winter gets colder. Right now they have been shallow on Douglas... and they go shallow as spring comes. Usually middle of winter I catch them in 15 to 20 foot... right now 5 to 10. In the spring even shallower.
Trolling... you'll have to talk to one of these lazy fishermen. LOL I've done it but it's not for me. I'd rather cast to them and feel the tick when they bite. For kids, it may be easier to troll if you have the right boat... when they are slow it gets them moving and you can cover water and find them... you'll also get an assortment of fish trolling.