These two free, device neutral, online resources are sure to bring high engagement and active participation into any classroom. The idea is simple, students answer questions in a competitive atmosphere, there will be a winner.
For both Kahoot and Quizizz, the facilitator creates a series of questions to be answered by the participants. Each question can have a time limit before the participant must select a response. The quicker the participant chooses a response, the more points they earn providing their choice was correct.
Using Kahoot, the questions are asked to the participants one at a time. Participants view the projected screen, answer a question by selecting the corresponding color on their device, points are awarded, and a new question is provided. When finished, persons with the most points will be displayed.
Using Quizizz, the facilitator starts the activity at which time participants are given questions in a random order. The participants read the questions on their device and answer them at their own pace. Once all participants complete the activity, persons with the most points will be displayed.
Quizizz would be a great tool to use for an entire class, or as a center since it is student driven. Kahoot is teacher driven providing time for discussion between each question being asked.
I've tried using both resources with groups of at least 40, and each time they worked fine.
Both Kahoot and Quizizz allows teachers to create their own questions, which can include images. When finished with the activity, the teacher can save the data describing how students answered each question. Teachers can explore through the many public assessments created and shared by others.
In either case, these opportunities provide a nice review experience or possibly a motivating pre-assessment experience. Definitely stated, the experience will be fun, highly energetic, and competitive.