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  2. Mobile phone use in schools - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_use_in_schools

    An increasing number of schools are now allowing the use of cell phones as learning tools. [91] However, the collective use of cell phones in schools poses other technological challenges. Some schools reported that allowing all students to use cell phones at the same time slows down school bandwidth speeds, and hence some schools have blocked ...

  3. File:Star Life Cycle Chart.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Star_Life_Cycle_Chart.jpg

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more

  4. Worksheet - Wikipedia

    en.wikipedia.org/wiki/Worksheet

    The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

  5. Cellular network - Wikipedia

    en.wikipedia.org/wiki/Cellular_network

    The most common example of a cellular network is a mobile phone (cell phone) network. A mobile phone is a portable telephone which receives or makes calls through a cell site (base station) or transmitting tower. Radio waves are used to transfer signals to and from the cell phone.

  6. Technology adoption life cycle - Wikipedia

    en.wikipedia.org/wiki/Technology_adoption_life_cycle

    Rogers ' bell curve. The technology adoption lifecycle is a sociological model that describes the adoption or acceptance of a new product or innovation, according to the demographic and psychological characteristics of defined adopter groups.

  7. Comparison of mobile phone standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mobile_phone...

    Cellular network standards and generation timeline. This is a comparison of standards of wireless networking technologies for devices such as mobile phones.A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.

  8. K-5 (education) - Wikipedia

    en.wikipedia.org/wiki/K-5_(education)

    K-5 (pronounced "kay through five") is an American term for the education period from kindergarten to fifth grade.It receives equal amounts of criticism and support in the educational industry.

  9. Mobile phone - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone

    Two decades of evolution of mobile phones, from a 1992 Motorola DynaTAC 8000X to the 2014 iPhone 6 Plus. A mobile phone, or cell phone, [a] is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones (landline phones).