Kahoot is a quiz making/gamify type tool that you can use in the classroom to create quizzes and game type activiites with your students. This is a great tool for educators that quickly allows you to make your lessons and presentations more interactive and engaging.Only a teacher needs an account which is free. When a teacher creates a quiz, it produces a code that the teacher can then share with the students, The students simply go to Kahoot.It, Another very popular mobile technology is Socrative and you might like to watcht the videos about that too.