The number of students receiving special education services in the United States has never been greater, representing about 8% of school-aged children. Classroom teachers play a central role in identifying children who need special assistance, as they see a large number of students and can more easily recognize those at risk. The first step is for teachers to informally screen students and collect work samples and observations. If interventions by the teacher and Instructional Support Team are ineffective, a formal referral is made for diagnostic assessment by a multidisciplinary team and development of an Individualized Education Program to aid the student.