http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/itools_pri_9780547584973_/main.html?module=geometricfigures&activity=2 (iTools:  Different Views)

 

http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/itools_int_9780547584997_/main.html?module=geometricfigures&activity=15 (iTools:  Plane and Solid Figures)

 

http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/mega_math_9780547585062_/megamathcd5/cm/launch.html?strActivityName=g36_2_2_A&strAssignID=1 (Frozen Solids Level A)

 

http://www-k6.thinkcentral.com/content/hsp/math/hspmath/na/common/mega_math_9780547585062_/megamathcd5/cm/launch.html?strActivityName=g36_2_2_K&strAssignID=1 (Frozen Solids Level K)

 

http://www-k6.thinkcentral.com/content/hsp/math/hspmath/go_math_2012/na/gr5/amm_9780547665054_/lesson.html?g_iGrade=5&g_iChapter=91&g_iLesson=48&strUserID=st1&g_iProduct=5&g_iSection=15 (Solid Figures)

 

http://illuminations.nctm.org/activity.aspx?id=4095