About: http://webisa.webdatacommons.org/427087316

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Interactive 'clickers' cost money, regularly do not work, are easily lost, and are a nightmare to manage, there is no easy way to detect mistake with them, and are only useful in large first year type classes.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org