As part of the federal No Child Left Behind Act (NCLB) of 2001, any school that is in its second year of School Improvement, or on Corrective Action or Restucturing, must offer supplemental educational services to eligible children in the school from a provider approved by the Colorado Department of Education and selected by the parents [ESEA, Section 1116(e)(1)].
SES is free tutoring offered outside of the regular school day and designed to increase the academic achievement of low-income students in low-performing schools. These services may include academic assistance such as tutoring, remediation and other educational interventions. Supplemental educational services must be high quality, research-based, and specifically designed to increase student academic achievement on the state assessment. Any service provided will be paid for by the school district. (Taken from CDE website)