I don't suppose it would be wrong, exactly, but "start off" strikes me as an informal phrase. I would say "The chapter begins with a discussion of...," or simply "The chapter starts with a discussion of...." The first example is probably preferable. The words "by providing" are unnecessary.
Those possibilities, my favourite would be "This chapter begins ..."
I come across this quite often, and I have not yet found an example that loses anything when I delete the sentence completely. Why do you feel the reader needs to be told what this chapter begins with?
Start it, please, then I'll know what it starts with
If it seems necessary to explain what's coming next, what about, "This chapter sets out the ...", "... describes how ...", "... analyses the ...".