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Technology have been improving for quite a long time. Therefore the means of technology in classroom have been changing accordingly to the advances. The most popular technology today, will be useless a few years from now as superior technology will be invented and the old ones will be ignored. Students find technology really interesting and sometimes this is what engages them in the lesson. Therefore teachers should try and use the technologies which students are familiar with, so that they will be able to learn by having fun.
There is a long road in the evolution of classroom technology, therefore I am going to mention just a few which I found mostly interesting.
1. Magic Lantern: is an early type of image projector developed in 1870. It projects images printed on glass plates and are shown to students in darkened rooms. The magic lantern was not only a direct ancestor of the motion picture projector, but it could itself be used to project moving images, which was achieved by the use of various types of mechanical slides. Typically, two glass slides, one with the stationary part of the picture and the other with the part that was to move, would be placed one on top of the other and projected together, then the moving slide would be hand-operated, either directly or by means of a lever or other mechanism.
2. Mimeograph: prints by forcing ink through a stencil onto paper. It was a new technology for printing small quantities as in office work and classrooms.
3. Reading Accelerator: With an adjustable metal bar helps students to tamp down a page. the reading accelerator was a simple device designed to help students read more efficiently. To those students who get distracted easily and sometimes they even get confused on which line they were reading, this is a really helpful device.
4. Scantron: The Scantron Corporation removed the need for grading multiple-choice exams. It manufactures and sells machine-readable papers on which students mark answers to academic multiple choice test questions. To analyze those answers, the machines use image-based data collection software and scanner.
These were four technologies which I had never heard about and which I found really interesting. There are more technologies mentioned in this site: http://www.edudemic.com/classroom-technology/. All the technologies mentioned made a great impact in the classroom, which helped students improve their education.
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