Help for a beginner

[Beginner]

I have only been fresh water fishing once or twice when I was a kid and now my 7 year old is begging me to take him, but I don't know the first thing about what to buy, where to go (on Percy Priest Lake), what to fish with etc?

I am clueless when it comes to fishing and have no idea where to go or what to get. Somebody help me please!!! Your advice would be totally appreciated by this city boy.
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