Effective Tier 1 instruction should adequately meet the needs of what percentage of students in a school?

Effective Tier 1 instruction is designed to be high-quality first teaching that is accessible and beneficial for the majority of students in a classroom. The expectation is that it should adequately meet the educational needs of 80-85% of students. This range is based on research and best practices in education, which suggest that a well-implemented Tier 1 framework will provide sufficient support and appropriate challenges for the majority, allowing them to learn and progress effectively without additional interventions.

This standard recognizes that while the majority will benefit from general classroom instruction, there will always be a smaller percentage of students who may require supplemental support through Tier 2 or Tier 3 interventions due to diverse learning needs. The goal of reaching 80-85% reflects a realistic and research-backed benchmark for effective classroom instruction, ensuring that resources can be allocated where they are most needed while maintaining a strong foundation of learning for most students.