<http://webisa.webdatacommons.org/207326459>	<http://www.w3.org/ns/prov#value>	"However, activities such as routine practice or drill, math worksheets, problems from textbooks and math on the chalkboard appear to be most effective, probably because they increase the automaticity of arithmetic." .
<http://webisa.webdatacommons.org/prov/295043913>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/207326459> .
<http://webisa.webdatacommons.org/prov/231085771>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/207326459> .
<http://webisa.webdatacommons.org/207326459>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/207326459>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<mathforum.org> .