This document provides summaries of several online formative assessment tools that can be used with students using cell phones or other devices. Kahoot, Quizizz, and Socrative are described as games or quizzes where the teacher creates questions and students respond using their devices. The document also summarizes tools for creating crosswords, Jeopardy-style games, image quizzes and more that can be shared online with students for review. Formative assessment is done informally during lessons to check understanding while summative assessment occurs at the end of a learning period.