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  2. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    [20] [21] The acronym PEMDAS, which stands for Parentheses, Exponents, Multiplication/Division, Addition/Subtraction, [22] is common in the United States [23] and France. [24] Sometimes the letters are expanded into words of a mnemonic sentence such as "Please Excuse My Dear Aunt Sally". [ 25 ]

  3. Fermi problem - Wikipedia

    en.wikipedia.org/wiki/Fermi_problem

    A Fermi problem (or Fermi question, Fermi quiz), also known as an order-of-magnitude problem, is an estimation problem in physics or engineering education, designed to teach dimensional analysis or approximation of extreme scientific calculations. Fermi problems are usually back-of-the-envelope calculations.

  4. Socratic method - Wikipedia

    en.wikipedia.org/wiki/Socratic_method

    Subject area, which can draw from print or non-print artifacts. As examples, language arts can be approached through poems, history through written or oral historical speeches, science through policies on environmental issues, math through mathematical proofs, health through nutrition labels, and physical education through fitness guidelines.

  5. Education in Croatia - Wikipedia

    en.wikipedia.org/wiki/Education_in_Croatia

    Croatian elementary (grade school) education lasts eight years, and is mandatory. Children begin school at the age of 6 or 7. [11] The students are divided into classes, and these classes are named Xa, Xb, Xc, etc., with X being the grade school year, for example 2b, 3d, etc., depending on the number of same-age students in a specific school.

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