summer michelle hansen , 32 , of california was sentenced in court on friday ; she was a teacher at centennial high school .
she entered a guilty plea in february to 16 felony counts including seven counts of oral copulation of a minor and six counts of statutory rape .
if she had been convicted at trial , she could have faced 13 years in prison .
hansen was arrested in june 2013 after a student came forward and said he had sex with her .
prosecutors said the sex acts occurred between may 2012 and 2013 .