7Watson,J.,et.al.Keeping Pace With K-12 Online & Blended Learning:An Annual Review of Policy and Practice(2011)[EB/OL].http://kpk12.com/cms/wp-con-tent/ uploads/KeepingPace2011.pdf,2013-8-27.
8iNACOL(International Association for K-12 Online Learning).Top 10 Myths about Virtual Schools[EB/OL].ht-tp://www.inacol.org/wp-content/uploads/2013/04/Ten-MythsAboutVirtualSchools.pdf,2012-12-5.
9Watson,J.,et.al.Keeping Pace With K-12Online & Blended Learning:An Annual Review of Policy and Practice(2012)[EB/OL].http://kpk12.com/cms/wp-con-tent/ uploads/KeepingPace2012.pdf,2013-8-27.
10Watson,J.,et.al.Keeping Pace With K-12 Online &Blended Learning:An Annual Review of Policy and Practice(2013)[EB/OL].http://kpk12.com/cms/wp-content/up-loads/EEG_KP2013-Ir.pdf,2013-11-21.