STOCKTON — With jubilant high-fives and congratulations ringing through the auditorium, Stockton Unified teachers voted by a 97 percent margin Friday to approve a tentative agreement and send it to trustees for final approval, likely ending the threat of a strike that has loomed over the district for months.“It lets us get back to focusing on what’s really important, which is teaching the kids,” Dennis Flynn, a seventh-grade teacher at Hazelton [...]