4 ms·

Schools can use passive Faraday walls/floors/ceilings. Metal fly screen works quite well. Common aluminum extruded windows, work fine. The brick needs to be sh

Schools can use passive Faraday walls/floors/ceilings. Metal fly screen works quite well. Common aluminum extruded windows, work fine. The brick needs to be shielded, and aluminium foil inserted as an inner layer is very good. In effect a metal 'balloon' has to be erected so all RF is blocked. I have seen very good shielded enclosures with transparent Faraday windows(not screens) that would use the same clear shielding layer. Quite good stuff, I have used a few of them. Screen is cheap and OK for cellular, but if you want 500+ Ghz blocked, screen is not good enough. Read about it here (no connection to me at all)https://jretest.com/ https://jretest.com/ It is easy and cheap to build a faraday plane in the construction phase, with a layer of screen/foil made where needed, at a fairly low cost. I see many cases of exam cheating that could be Faradayed out of existence by a wooden frame screen room set up for the exam at whatever size needed. No jamming or emission interruption that would break FCC laws. In fact the cheaters are breaking more laws and I can suggest a few RFI 'sniffers' like this from JREtest would find emitters. https://jretest.com/product/jre-sta-1/ https://jretest.com/product/jre-sta-1/ At $550 a school could buy one for each invigilator to use to detect cheats as each one will last 10 years or so so the cost per exam approaches zero. A little chat with the owner of JREtest might find he can sense a market and he can work with a school to find the optimal build for that task, because there is a global market for a few hundred thousand RFI Turko-Sniffers every year...

arrowsmith 2y ago
Or they could just not let children use their phones in class. How is this difficult?
- aurizon 2y ago
  LOL, As theysay - 'the hills are alive' https://www.google.com/search?q=exam+cheat+stealth+cell+phone+cheat&sca_esv=b0f140112296a7ff&rlz=1C1CHZN_enCA1101CA1101&sxsrf=ADLYWILk3nFTg-WmU_5jBOSFdYvYKa8WCQ%3A1716068278106&ei=th9JZvyNBoXv0PEP-puy2Aw&ved=0ahUKEwj8wIHBlJiGAxWFNzQIHfqNDMsQ4dUDCBA&uact=5&oq=exam+cheat+stealth+cell+phone+cheat&gs_lp=Egxnd3Mtd2l6LXNlcnAiI2V4YW0gY2hlYXQgc3RlYWx0aCBjZWxsIHBob25lIGNoZWF0MggQIRigARjDBEjCvwFQ0hlY8rgBcAF4AZABAJgBb6AB_weqAQM4LjO4AQPIAQD4AQGYAgygApIIwgIKEAAYsAMY1gQYR8ICCBAAGIAEGKIEwgIKECEYoAEYwwQYCpgDAIgGAZAGCJIHAzkuM6AH6iQ&sclient=gws-wiz-serp#ip=1 https://www.google.com/search?q=exam+cheat+stealth+cell+phon... and these https://www.google.com/search?q=catch+cell+exam+cheaters&sca_esv=b0f140112296a7ff&rlz=1C1CHZN_enCA1101CA1101&sxsrf=ADLYWIJIoW6CFYKSj2NbQab-gLM4cL_Now%3A1716068326938&ei=5h9JZqf2ON6Am9cPyY2S2Ag&ved=0ahUKEwingabYlJiGAxVewOYEHcmGBIsQ4dUDCBA&uact=5&oq=catch+cell+exam+cheaters&gs_lp=Egxnd3Mtd2l6LXNlcnAiGGNhdGNoIGNlbGwgZXhhbSBjaGVhdGVyczIFECEYoAEyBRAhGJ8FMgUQIRifBTIFECEYnwUyBRAhGJ8FSLnQAVCPI1iGpAFwAngBkAECmAF_oAGgKaoBBTQ0LjEzuAEDyAEA-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&sclient=gws-wiz-serp https://www.google.com/search?q=catch+cell+exam+cheaters&sca...
  - arrowsmith 2y ago
    Well yes but the article isn't about students cheating in exams, it's about students being distracted by their phones in regular classes.
    - aurizon 2y ago
      There is a continuum of cheating, spot responses as a quizzed student is sent an SMS answer and tries to see it without being spotted. At the other extreme is the formalised exam/test where a similar set of opposed data/cheats are at play. In many end cases are the open book exams where the student takes whatever he wishes to riffle through to create his best response to get the highest marks. The crux is:- assessing how well a student has mastered a topic becomes increasingly difficult as the final years and tiers of graduate school are encountered. Often the student is smarter in intellect than the examiner, but has a lower level of achievement - at that time. Often lower grades can be assessed a lot faster via multiple choice questions that can be marked with an aperture card very quickly
      - arrowsmith 2y ago
        Are you sure you're replying to the right thread? We're not talking about exams.
        aurizon 2y ago
        There are many facets to teaching, the explanation of an aspect, to query students to assess how they understand that aspect. This can be spot tests where one aspect is asked what is it etc, often in a short interval in the last few minutes prior to end of that period. They can also be weekly/monthly/end of semester. These will vary, with end of a semester being a 1-2 hour detailed question set to which the student answers question by question, the weekly/monthly = lesser length/detail. At each stage the student is asked to show how he has learned each of the listed test questions and the teacher later assesses the answers and gives the student points on each question so that at the end a summation will give an indication of the degree of mastery - students are often then instructed on the deficient areas. Obviously the students can hire an expert to take their exam, as a group hire, or each student hiring his own expert to sit the exam for them. LOL - this and other schemes have been tried and they are part of the education burden. At University of Toronto exams are closely watched, with photo ID needed for just this reason. Dozens of 'ringers', taking exams for students, have been discovered. It is often hard to correctly ID students from various ethnic back grounds when the invigilator is from a different ethic/racial back ground who is not famiiar with the students back ground. The students search for the best possible 'ringer' to minimize the risk of discovery. In summation - all aspect of teaching involve assessing the student as well as the teacher. Anything that reduces how well a student studies or engages in diversions - such as games played in class, or passes data between students to allow a correct answer to be given to a teacher that is not from the student's own knowledge base is a form of fraud. The student bears the cost of the fraud when he fails his exams = the money/time spent are wasted. He may get his degree, and then his patients suffer, if he is a doctor/dentist, or a house fire if he is a bad electrician granted his ticket by fraud. AI is in a good position to teach topics, as well as to test how well topics have been mastered and to also pose detailed exams for students on a case by case basis, with a detailed back ground knowledge of that student's past work so he/she can be examined in exhaustive detail - detail normal examiners could not do due to time constraints. This area is in rapid expansion as we speak because costs and time restraints in teaching are causing large deficiencies in student bodies, to such a degree that student scores are falling steadily, ad the field is ripe for a revolution.

arrowsmith 2y ago

Or they could just not let children use their phones in class. How is this difficult?

aurizon 2y ago
LOL, As theysay - 'the hills are alive' https://www.google.com/search?q=exam+cheat+stealth+cell+phone+cheat&sca_esv=b0f140112296a7ff&rlz=1C1CHZN_enCA1101CA1101&sxsrf=ADLYWILk3nFTg-WmU_5jBOSFdYvYKa8WCQ%3A1716068278106&ei=th9JZvyNBoXv0PEP-puy2Aw&ved=0ahUKEwj8wIHBlJiGAxWFNzQIHfqNDMsQ4dUDCBA&uact=5&oq=exam+cheat+stealth+cell+phone+cheat&gs_lp=Egxnd3Mtd2l6LXNlcnAiI2V4YW0gY2hlYXQgc3RlYWx0aCBjZWxsIHBob25lIGNoZWF0MggQIRigARjDBEjCvwFQ0hlY8rgBcAF4AZABAJgBb6AB_weqAQM4LjO4AQPIAQD4AQGYAgygApIIwgIKEAAYsAMY1gQYR8ICCBAAGIAEGKIEwgIKECEYoAEYwwQYCpgDAIgGAZAGCJIHAzkuM6AH6iQ&sclient=gws-wiz-serp#ip=1 https://www.google.com/search?q=exam+cheat+stealth+cell+phon... and these https://www.google.com/search?q=catch+cell+exam+cheaters&sca_esv=b0f140112296a7ff&rlz=1C1CHZN_enCA1101CA1101&sxsrf=ADLYWIJIoW6CFYKSj2NbQab-gLM4cL_Now%3A1716068326938&ei=5h9JZqf2ON6Am9cPyY2S2Ag&ved=0ahUKEwingabYlJiGAxVewOYEHcmGBIsQ4dUDCBA&uact=5&oq=catch+cell+exam+cheaters&gs_lp=Egxnd3Mtd2l6LXNlcnAiGGNhdGNoIGNlbGwgZXhhbSBjaGVhdGVyczIFECEYoAEyBRAhGJ8FMgUQIRifBTIFECEYnwUyBRAhGJ8FSLnQAVCPI1iGpAFwAngBkAECmAF_oAGgKaoBBTQ0LjEzuAEDyAEA-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&sclient=gws-wiz-serp https://www.google.com/search?q=catch+cell+exam+cheaters&sca...
- arrowsmith 2y ago
  Well yes but the article isn't about students cheating in exams, it's about students being distracted by their phones in regular classes.
  - aurizon 2y ago
    There is a continuum of cheating, spot responses as a quizzed student is sent an SMS answer and tries to see it without being spotted. At the other extreme is the formalised exam/test where a similar set of opposed data/cheats are at play. In many end cases are the open book exams where the student takes whatever he wishes to riffle through to create his best response to get the highest marks. The crux is:- assessing how well a student has mastered a topic becomes increasingly difficult as the final years and tiers of graduate school are encountered. Often the student is smarter in intellect than the examiner, but has a lower level of achievement - at that time. Often lower grades can be assessed a lot faster via multiple choice questions that can be marked with an aperture card very quickly
    - arrowsmith 2y ago
      Are you sure you're replying to the right thread? We're not talking about exams.
      - aurizon 2y ago
        There are many facets to teaching, the explanation of an aspect, to query students to assess how they understand that aspect. This can be spot tests where one aspect is asked what is it etc, often in a short interval in the last few minutes prior to end of that period. They can also be weekly/monthly/end of semester. These will vary, with end of a semester being a 1-2 hour detailed question set to which the student answers question by question, the weekly/monthly = lesser length/detail. At each stage the student is asked to show how he has learned each of the listed test questions and the teacher later assesses the answers and gives the student points on each question so that at the end a summation will give an indication of the degree of mastery - students are often then instructed on the deficient areas. Obviously the students can hire an expert to take their exam, as a group hire, or each student hiring his own expert to sit the exam for them. LOL - this and other schemes have been tried and they are part of the education burden. At University of Toronto exams are closely watched, with photo ID needed for just this reason. Dozens of 'ringers', taking exams for students, have been discovered. It is often hard to correctly ID students from various ethnic back grounds when the invigilator is from a different ethic/racial back ground who is not famiiar with the students back ground. The students search for the best possible 'ringer' to minimize the risk of discovery. In summation - all aspect of teaching involve assessing the student as well as the teacher. Anything that reduces how well a student studies or engages in diversions - such as games played in class, or passes data between students to allow a correct answer to be given to a teacher that is not from the student's own knowledge base is a form of fraud. The student bears the cost of the fraud when he fails his exams = the money/time spent are wasted. He may get his degree, and then his patients suffer, if he is a doctor/dentist, or a house fire if he is a bad electrician granted his ticket by fraud. AI is in a good position to teach topics, as well as to test how well topics have been mastered and to also pose detailed exams for students on a case by case basis, with a detailed back ground knowledge of that student's past work so he/she can be examined in exhaustive detail - detail normal examiners could not do due to time constraints. This area is in rapid expansion as we speak because costs and time restraints in teaching are causing large deficiencies in student bodies, to such a degree that student scores are falling steadily, ad the field is ripe for a revolution.