However, both the cost and the realistic implementation of this ideal has been a problem: the Khan Academy might have successfully adress these issues, through both cost-free nature of the site and its wide accessibility via the internet.
Both the cost and the realistic implementation of this ideal has been a problem. This was however. The Khan Academy might have successfully adress these issues-free nature of the site. This is through both cost. The Khan Academy might have successfully adress its wide accessibility via the internet. This is through both cost.