BOISE - A 28-year-old physical education teacher in Eastern Idaho was arrested Wednesday after being accused of having sex with a 14-year-old male student. Detectives arrested Kari Atkinson after receiving an anonymous tip. Atkinson teaches at Sandcreek Middle School in Ammon. "Detectives went out and interviewed the victim as well as the suspect and based on that, they filed arrest charges for lewd and lascivious conduct with a child under 16," said Sgt. Doug Metcalf with the Bonnevile County Sheriff's office.