This site gamifies and enlivens quizzes. The upbeat environment allows for optional music, immediate feedback, timers, and fun memes. You can create your own quizzes or borrow and modify from an extensive bank of existing quizzes.
Kahoot is a game-based classroom response system that can be played by the whole class in real time.
Formative assessments through quizzes (multiple choice, True/False, and short answer) or quick question polls for up to 50 students per session. Quizzes can be instantly graded and aggregated.
A quick way to create your own gameshow-style boards (e.g. Jeopardy) for test reviews in the classroom. Text-based questions are displayed on-screen and boards are saved for later use.