Everyone is concerned when children, especially school children, are the victims of violent crime, but schools bear a special responsibility for the safety of students when they are in the classroom, on school grounds, or on school-provided transportation. The Bureau of Justice Statistics and the National Center for Educational Statistics have collaborated on collecting information about students' experience of crime and crime-related conditions at school. This report presents a national portrait of the degree to which students ages 12 to 19 experience violent crime or theft of their property at school and their perceptions of the presence of guns, street gangs, and illegal drugs at their schools. It also highlights the important changes in these crime-related factors that occurred from 1989 to 1995. Students for the study were interviewed in their homes, either in person or by telephone. It was found that more students were exposed to certain problems at school in 1995 than in 1989. The former group was more likely to report that they had experienced violent victimization, could obtain drugs, and were aware of street gangs at school. A second key finding was that various types of problems tended to coexist; for example, reports of violent victimization were higher among students who believed drugs were available than among students who reported that drugs were not readily available. Contains 5 tables and 15 figures. (RJM)