According to IDEA, what must happen prior to the implementation of an IEP?

The requirement for students to undergo assessments prior to the implementation of an Individualized Education Program (IEP) aligns with the principles of the Individuals with Disabilities Education Act (IDEA). This act emphasizes the need for a thorough evaluation of the student's needs and abilities to ensure that the IEP is tailored specifically to address those needs.

Assessments help in identifying the specific areas where a student may require support, including academic skills, social skills, and behavioral aspects. These evaluations guide the development of the IEP by providing crucial data and insights, thus making it possible for educators and parents to make informed decisions about the appropriate educational services and interventions.

The other options do not align as closely with the legal requirements set forth by IDEA. Though communication and collaboration with parents (such as meetings) is fundamental, it is the evaluation through assessments that formally establishes the basis for an IEP's development and implementation.