About: http://webisa.webdatacommons.org/75907657

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	The analogy most often used for learning objects is one of plastic, interchangeable blocks.
http://www.w3.org/ns/prov#wasQuotedFrom	acm.org