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  1. 20 godz. temu · Educational research. Educational technology (commonly abbreviated as edutech, or edtech) is the combined use of computer hardware, software, and educational theory and practice to facilitate learning. [1] [2] When referred to with its abbreviation, "EdTech", it often refers to the industry of companies that create educational technology.

  2. en.wikipedia.org › wiki › HygieneHygiene - Wikipedia

    20 godz. temu · Washing one's hands, a form of hygiene, is the most effective way to prevent the spread of infectious diseases. Hygiene is a set of practices performed to preserve health.According to the World Health Organization (WHO), "Hygiene refers to conditions and practices that help to maintain health and prevent the spread of diseases." Personal hygiene refers to maintaining the body's cleanliness.