second graders performs sex acts. they say it happened and with the teacher present in an elementary school in oakland. that s where grace lee is to explain. part of the challenge school officials say is in the investigation, the people involved are so young. you have to remember, this is 7- and 8-year-old, boy and girl allegedly performing sex acts on each other. i think everybody is taken aback. troy from the oakland unified school district says there were two separate occurrences that they are investigating. last week several students reportedly took off their clothes in a classroom while the teacher was present. even more surprising, in the same classroom, a boy and girl engaged in oral sex. two second graders again while the teacher was there. of course, it s hard to understand how that could have occurred given the severity of the events. all the principal could do is send out an apology outlining the allegation. in a parent, principal says, this represents an