[nabs-l] question about i clickers

[Mauricio Almeida]

hello all,

some of my classes use Iclickers for students to respond to questions as a manner of majoring participation.
do we have any that is particularly accessible, or aill any work for the blind?
if they do not, do you have any alternatives? I haven't spoken to the professor yet but i would like your feedback on this subject.

thank you in advance,

mauricio