SARANAC, Mich (WLMI)  A former Saranac High School teacher is admitting to an affair with a female student.  Krag Sanford pleaded no contest to charges in Ionia County in connection with an inappropriate relationship with a then 16-year-old student.  As part of his plea agreement, Sanford must give up his teaching certificate and register as a sex offender.  He agreed to a similar deal this week in Kent County.