About: http://webisa.webdatacommons.org/39649228

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	Teach calculations, including fractions, including mental calculations. (CS: book on how to do that is mentioned.)
http://www.w3.org/ns/prov#wasQuotedFrom	motionmountain.net