SANTA MARIA, Calif. -

The high school teacher arrested in Santa Maria for allegedly having sex with a student made his first court appearance today.

The district attorney formally filed charges for Pioneer Valley High School teacher Brian Thomas Hook.

Today the judge read four counts of sexual acts with a minor; two for January 14th and two more for February 13th. 

Last Wednesday Pioneer Valley High School principal heard the 53-year-old social science and history teacher may be having sex with a 16 year old student.

Hook was arrested the following morning.

Hook is also the girls basketball coach.

He is waiting to be paired with a public defender and will return to court on Friday to face his charges.