Irish striker Adam McGurk latched onto a through ball from right-back Phil Edwards before lashing the ball in from 12 yards to put Albion ahead in the 12th minute.
If anything, the goal seemed to spur Plymouth on and central-defender Neal Trotman had a goal-bound header cleared off the line by Robbie Weir, while eight-goal top-scorer Reuben Reid went close on three occasions in the first half.
Argyle manager Sheridan said: "Burton made it very difficult, they got men behind the ball but I am very positive in the way we played.
"I am not positive with the result because I want to win every game but other than the goal we conceded - which was very poor on our part - I thought we went about the game really well.
"I thought we played really well and I told the players that, we need to keep that.
"There's a difference in us now, definitely. You can see it in the players. They really wanted to win the game, get back into the game and no-one was hiding.
"Everyone was on the front foot, I think we should have won the game and that's the way I am going to look at it.
"I don't like the result, because I want to be pushing up the table and trying to get closer to the teams at the top. That's the hardest thing about it, but I think we definitely deserved something out of the game.
"I thought the team performance was very good today. I think if we carry on with that mentality, desire and will to win then we will win more than we lose."
- Sports & Recreation