I, myself am not a teacher, but I do have an idea about the teaching of technology in the classroom.
While the majority of students are tech savvy (as demonstrated by their skills in gaming and communicating via cell phones), I am concerned about the minority of students who are poor and have inadequate parenting, and no access at home or within their social group to technology.
I would hope that teachers could recognize students that are lacking in this regard in order to perhaps squeeze in some special attention or classroom activities or games that would help bring these students into the mainstream.
I don’t believe the teaching of technology in the classroom should be rationed or limited, so long as the teacher continues to teach responsibly.
As others have so well stated, there is no substitute for a good teacher who can recognize and respond to student needs.