Here's what a real newspaper reported;
"She is accused of engaging in intercourse and oral sex with the student under a statute that prohibits sexual contact between teachers and students in their schools."
http://www.courant.com/breaking-news/hc-br-new-britain-arrest-west-hartford-teacher-20180202-story.html
Here's an explanation from
https://www.cga.ct.gov/2007/rpt/2007-R-0710.htm
Generally, under CGS Sec. 53a-71, a person is guilty of sexual assault in the second degree when he (1) engages in sexual intercourse with a minor who is 13, 14, or 15 and (2) is more than three years older than the minor. However, the crime also includes cases in which a school employee engages in sexual intercourse with a student enrolled in a school in which he works or a school under the jurisdiction of the local or regional school board that employs him. This provision applies regardless of the student's age and the difference in age between the student and the employee. It also applies to (1) coaches and (2) school volunteers 20 and older who are in a position of power, authority or supervision over a person under age 18.