Thirty-four-year-old former McCaskey High School teacher Christy Lee Smith was convicted in Lancaster County of 18 of 22 counts involving relationships with teens between 2008 and 2010.
Prosecutors said one teen met Smith through school, the other through a dance class.
The (Lancaster) Intelligencer Journal/Lancaster New Era says Judge Dennis Reinaker said Wednesday that Smith was a good teacher but "proved incapable of knowing where to draw the line" with students.
Smith declined comment in court. Defense attorney Merrill Spahn said she didn't agree with the verdict and asked the judge to consider her good works.