This document summarizes research on how teens use social media and how it impacts their identity and experiences in high school. The researchers surveyed and observed 48 high school students to understand how they navigate different social networks for varied purposes like self-expression, privacy, and learning. They found that teens curate their online identities carefully across platforms like Instagram, Snapchat, Facebook, and Twitter. While social media allows access to school information and peer connections, not using it can lead to isolation. The researchers conclude that teens are becoming adept at interacting online, and teachers could provide guidance to help support this development.