Achievement Through Prevention Act - Amends part A of title I of the Elementary and Secondary Education Act of 1965 (ESEA) to allow states, local educational agencies, and schools to use school improvement funds to implement schoolwide positive behavioral interventions and supports and early intervening services and coordinate them with similar activities carried out under the Individuals with Disabilities Education Act. (Early intervening services are a set of coordinated services for students in kindergarten through grade 12 who are not currently identified as needing special education or related services, but who need additional academic and behavioral support to succeed in a general education environment.)
Amends part D of title I of the ESEA to require states that receive funds for the education of neglected or delinquent children or youth to use positive behavioral interventions and supports and early intervening services to improve such students' academic performance and reduce their need for discipline.