Firewalls: Putting a Limit on Learning High school English teacher, Ms. Smith, searched all night for the perfect tutorial on how to write an essay for her struggling students. She was about to give up when she found the perfect video on YouTube. In the next class, excited for this influential lecture, Ms. Smith opened her laptop to show her students the video, but when she tried to open the link the website simply read “ACCESS DENIED.” The gray ambiance of the projector stared at the faces of…
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