About: http://webisa.webdatacommons.org/356924777

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	Teachers can create a challenge by building a mechanical system in the simulation with customized variables and learning scaffolds such as texts, images, videos, and dynamic charts.
http://www.w3.org/ns/prov#wasQuotedFrom	columbia.edu