Reid noted that Kolb misread a coverage and threw an interception in practice Saturday, but made the correct read of the same coverage Monday and completed a pass for a modest gain.
"He threw it the other day," Reid said. "Came back today and learned from it. ... That's what he's doing. When Kevin makes a mistake, he learns from it and makes progress. That's a very important quality to have. The guys who make them over and over and over again, those guys can't play at this level. It just doesn't work for them."
Kolb struggled in a night session Thursday, as did the rest of the offense. Then Reid made the rare move Saturday of publicly criticizing his players.
He was much more satisfied with his team's work on both sides of the ball Monday.
Wide receiver DeSean Jackson, running back LeSean McCoy and running back Eldra Buckley left practice early because of heat-related problems.