Introduction: Simple Classroom Quiz Buzzers

It's easily to make the simple classroom quiz buzzers .I use a switch,two Electronic stopwatches(including batteries),four meters wire and some electric tools.It's a parallel circuit.
But it has low accuracy.

Comments

author
rimar2000 made it! (author)2012-07-06

Forgive my ignorance. I searched Google with responder but I could not found what thing it is. Can you explain it to me?

author
seraine made it! (author)seraine2012-07-07

I think it's basically one of those things where two people are asked a question. When one of the two thinks they know it, they press their respective button and get to answer their question. This tells who the first person to press their button was.

author
MakingWorld made it! (author)MakingWorld2012-07-07

you are right.so,can you tell me what it is in English?Google tells me that it is a responder.all in all,thanks for your help.

author
seraine made it! (author)seraine2012-07-08

They are often called classroom quiz buzzers. Here is a link with a lot of different ones. http://www.trainerswarehouse.com/products.asp?dept=122

author
rimar2000 made it! (author)rimar20002012-07-09

Thanks, seraine. I see that is a very clever solution to a trivial problem.

author
MakingWorld made it! (author)MakingWorld2012-07-08

Thanks again.

author
rimar2000 made it! (author)rimar20002012-07-08

Thanks, seraine.

author
MakingWorld made it! (author)MakingWorld2012-07-06

I feel sorry that my english is not good to explain what it is.it calls 抢答器 in Chinese.it also calls competitive answer machines.It's used to determine who can answer in advance. Thanks for your reminding.

About This Instructable

1,454views

6favorites

License:

More by MakingWorld:A Self-study Robotic ArmSimple Classroom Quiz Buzzers
Add instructable to: