Having thought about your readers and possibly having done some background research, write a sentence or two introducing the issue. For example, you could begin by giving the historical context of the issue, using a sentence strategy like this:
Jeremy Bernard uses this strategy when he presents quotations describing baseball as “a game of innocence” and then writes:
The age of innocence in baseball seems to have ended in the 1990s when “the Steroid Era” began and players from Mark McGwire to Roger Clemens, Barry Bonds, and Alex Rodriguez were identified as using performance enhancing drugs (PEDs). (par. 1)
Another possible strategy is to pose rhetorical questions, like those Betsy Samson uses to present the issue of helicopter parenting:
How much influence should parents have in their children’s decision making as kids get older? When does parental influence cross the line and, however well-intentioned, become detrimental? These are questions that parents and children wrestle with constantly. (par. 3)