Strength of schedule is calculated from the opponents projected fantasy points allowed for the PK position. The best rating is +16 which gives the player the advantage against the defense and indicates an easy opponent, the worst rating is -16 which gives the defense the advantage and indicates a tough opponent.
After 14 long years in Cleveland, Dawson joined the 49ers in 2013. The results were pretty danged good, with the 39-year-old tying a career-best with 36 made field goals. That production, and the 40+ extra points that came with it, merited a sixth-place finish among fantasy kickers in 2013, and there's little reason to think Dawson can't at least match that mark this year.