using Mentimter 1--- Check students’ background knowledge

This video teaches me how to use Mentimter.

How to use: Create questions (open question and multiple choice questions)--- present---showing the QR code for scanning

In my own class, I use it in this way to check students'  background knowledge.For example, after watching a short video about introduction of Guangzhou, I  posted this question in the form of Mentimter.

Instead of asking students who has answered the question correctly and counting the accurate rate, I can easily read this number shown on the screen. Yes, it will, for sure, save time.