Bail for a former elementary school teacher accused of taking bizarre photos of children in his classroom for a sexual thrill was raised Wednesday to $23 million, as parents questioned why they weren't notified when the pictures were found more than a year ago. Mark Berndt, 61, appeared in court for the first time after being charged with committing lewd acts involving 23 boys and girls, ages 6 to 10, between 2008 and 2010. The tall and graying Berndt, represented by public defender Liz Braunstein, seemed calm…