Formative assessment is an essential tool in any classroom. Using your data to inform instruction leads to a more personalized learning experience for your students. Based upon your purpose, there are multiple options for STUDENT RESPONSE SYSTEMS.
Socrative is student response system that allows you to generate short, immediate questions for feedback, or longer summative assessments for the end of a unit.
Kahoot is a fun, engaging way to formatively assess the learning in your classroom, allowing you to inform your instructional path.
"Student choice. Visible thinking. Easy. ‘Student response’ will never be the same."
Source: http://www.infuselearning.com/