David Lindquist Tamara Denning Michael Kelly Roshni Malani William G. Griswold Beth Simon Exploring the potential of mobile phones for active learning in the classroom. 384-388 2007 conf/sigcse/2007 SIGCSE http://doi.acm.org/10.1145/1227310.1227445 db/conf/sigcse/sigcse2007.html#LindquistDKMGS07