How does it work?
You have to subscribe yourself on plickers.com and create your own class.
Download the (free) plickers app from google playstore or the applestore.
Every pupil will need to have an unique plickers code, which can be printed from plickers.com.
How each pupil holds their code effects their answer, A, B, C or D.
The biggest advantage of plickers, is that it doesn't requires any devices from your pupils. Just your own smartphone.
Another advantage is that your pupils don't have to go to a site, download an app or stuff like that.
It's fast, this is the question, get your code from your drawer and choose an answer.
Organized. You can see what each pupil voted, and how many votes each answer got.
Not so accurate. I tried plickers in my class. A big issue was that my phone couldn't retrieve all the codes, so some pupils didn't get a chance to vote. How accurate plickers is, is also influenced by the way your pupils hold their paper. It has to be as straight and clean as possible for the highest succes rate.
My biggest disadvantage of this tool is that you can't show the question you asked inside plickers. Which means you will have to show the answers of A,B,C,D and your question in another tool or writing program.
Sometimes it doesn't work as it is supposed to do, you can't show the answers and your question, it's easy to use if it works. And the pupils LOVE it. They keep asking if they can vote again. So it definitely triggers them. Don't use it too often, or else they'll probably get bored.
It is fun to create your own class, and give every pupil their own number (which you can save at your profile, for example George has #2 and ....has #3 and so on.) I did this in my class, and suddenly they became really protective about their own stuff, no one could touch their paper.
This is another voting system, but this one has the big advantage that your pupils don't have to use any devices, it's fast and triggers your pupils to protect their belongings. Fun!
Content Knowledge: I think Plickers can mostly be used to let your pupils make choices. I don't think Plickers would be a good tool to be used for tests. Mostly it's just fun, quite quick and pupils really care about their own code and suddenly like to vote. So when I look at the 21st Century Skills by Kennisnet, commitment would be the biggest aspect.
Technological Knowledge: you are the only one that needs a device, and maybe an digital schoolboard to show the results to your pupils. This is a big advantage if you compare this tool with other voting tools like Socrative or Mentimeter.
Pedagogical Knowledge: pupils can save their own personal code in their drawer, and when you want to make them choose between 4 choices let them take their code and hold it up. All you have to do is prepare your question on the website (logged in) and scan the codes using your Plickers app on your phone. The results will show up on the site and your phone.