This study aimed to identify aggression patterns among students, compare teachers' and students' reports on aggressiveness, and examine whether emotional and behavioral problems and self-control intercorrelate with aggression and can explain it among students. The study investigated 363 students aged 8 to 11 years and their 12 homeroom teachers in two elementary schools in central Israel. As expected, students reported higher verbal aggression than physical without gender differences in the general tendency. Also, students reported a higher rate of others' aggression toward them than their own aggression toward others. Similarities emerged between students' and teachers' reports. Four types of students were classified: the aggressive initiator (proactive), the aggressive responder (reactive), the passive victim, and a neutral type. An important outcome was the significant negative association of aggressiveness with self-control. Students with higher rates of self-control skills presented lower rates of aggressive behavior.