This fun game-based learning platform is simply the most popular app I have ever used in the classroom.
Kahoot! is actually very similar to another of my favourites, Socrative. The teacher (or students) creates a multiple-choice quiz using the web interface which students then access using their tablet, laptop or smartphone. There are also thousands of ready-made public Kahoots that you can use.
However, unlike Socrative, the questions are only displayed via the teacher’s device and the students answer by selecting one or more of four coloured buttons that appear on their own screens (see below). A time limit, a leadership board and the fact that students can get more points by answering quickly adds a competitive element which the students adore.
Kahoot! can also be used as an interface for class surveys and I have recently started using it to display hingepoint questions during lessons as a means of formative assessment. It is completely free and although registration is required to create quizzes, students are not expected to login to play (they simply tap in a pin number displayed by the teacher). I highly recommend it.