A former Ashland County teacher faces sentencing after admitting he took upskirt videos of female students. Robert Altenburger pleaded guilty yesterday to five counts of voyeurism. He taught art at the middle and high schools in Hillsdale, and also served as the cross country coach. Prosecutors say Altenburger took brief videos of girls by placing a cellphone underneath their skirts. He faces put to 18-months in prison when he's sentenced on January 14th.