This document provides an overview of common childhood mental disorders, including definitions, statistics, and symptoms. It discusses: I. Definitions of mental disorders in children and common disorders like ADHD, depression, anxiety, and autism spectrum disorder. II. Statistics from the CDC showing the most prevalent disorders are ADHD (6.8%), behavioral/conduct problems (3.5%), and anxiety (3.0%). III. Notable changes in the DSM-5, including combining autism subtypes and adding disruptive mood dysregulation disorder. It describes how these disorders can impact learning through absences, suspensions, medication adjustments, and issues with memory, motivation, and homework completion.