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Greenwich schools to ban most cellphones, Apple Watches, Fitbits and more

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Re: Greenwich schools to ban most cellphones, Apple Watches, Fitbits and more

#241

Earlier quoted context omitted.

I've made the comment before that all the schools really need is a classroom, desks and chairs, a chalkboard, and a teacher. Pen & notepaper helps. The rest is just useless fluff. Note that Caltech was exactly that. A prof, a chalkboard, a lecture hall. I learned more in 2 weeks with that than a year of high school. I've suggested to college students that they'll learn better if they leave their laptops in the dorm.…

You need much more than that for a good education. While I do agree that smart devices are not necessary, you still need a lot of extra materials for most subjects. You need various kinds of maps for geography and history, you need many images of animals and plants for biology, you need teaching manuals for every subject, you need various books for literature to read poems and prose, you need various materials for ar…

> You need much more than that for a good education.

No, not really. At Caltech, about half had a textbook, but the textbook was not referred to during lecture, and what was taught tended to diverge from the textbook.

> maps

The prof would freehand the salient aspects of a map and any other drawings required.

> literature

I never took any literature classes, as I saw no value in them. Even so, I cannot see the utility of a textbook during class.

> You're not going to be a good EE student if you can't model a circuit in Spice or draw one in some *CAD.

I had to laugh. None of that was available in the 70s.

I drew circuits freehand on paper. OMG. There were labs available for students building circuits, where the rubber really met the road.

I was not majoring in EE, I just enjoyed the classes. But the EEs Caltech turned out were all first class engineers. Taught by lectures with a blackboard and chalk.

Quantum physics was taught the same way. Not even a textbook.

The engineering work I did on the 757 was pen and paper, with a calculator as a crutch.

The most damning evidence against all these materials is that there is zero evidence of any improvement in K-12 results in the last 50 years, and things just seem to be getting worse.

> you need teaching manuals for every subject

Only for teachers who don't know the material.

Re: Greenwich schools to ban most cellphones, Apple Watches, Fitbits and more

#242

Earlier quoted context omitted.

Another way to jam would be to spoof being a tower. The cell phones would uselessly connect to the school tower. Since phones transmit their location, the spoofer could "geofence". Or even ask the local cell phone tower people to geofence the school.

Spoofing is, by definition, not jamming but in terms of the goal if you combined a multi carrier spoofer with a DAS you could theoretically get things down to ~a million $ per high school on average and not horrifically leak signal as if you just stood up a spoofer and centrally blasted it out. It's also still carrier and technology generation specific though. I.e. if a new carrier/MVNO appears or an existing carrier…

Thanks for the info.

Many schools are set back a ways from other buildings.

I would just set up a jammer, and adjust its power so the nearest buildings could still use their phones, while the school phones would have problems connecting.

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