<http://webisa.webdatacommons.org/211664042>	<http://www.w3.org/ns/prov#value>	"The activity can be done using a ruler, string, astronomical images and other items easily found in a classroom." .
<http://webisa.webdatacommons.org/211664042>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/495148253>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/211664042> .
<http://webisa.webdatacommons.org/211664042>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<berkeley.edu> .