About: http://webisa.webdatacommons.org/195386285

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	This short video is a great resource to introduce subtracting with manipulatives.
http://www.w3.org/ns/prov#wasQuotedFrom	watchknowlearn.org