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  2. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    The order of operations, that is, the order in which the operations in an expression are usually performed, results from a convention adopted throughout mathematics, science, technology and many computer programming languages. It is summarized as: [2] [5] Parentheses; Exponentiation; Multiplication and division; Addition and subtraction

  3. Brief Answers to the Big Questions - Wikipedia

    en.wikipedia.org/wiki/Brief_Answers_to_the_Big...

    Brief Answers to the Big Questions is a popular science book written by physicist Stephen Hawking, and published by Hodder & Stoughton (hardcover) and Bantam Books (paperback) on 16 October 2018. The book examines some of the universe 's greatest mysteries, and promotes the view that science is very important in helping to solve problems on ...

  4. Science education - Wikipedia

    en.wikipedia.org/wiki/Science_education

    Science education is the teaching and learning of science to school children, college students, or adults within the general public. The field of science education includes work in science content, science process (the scientific method), some social science, and some teaching pedagogy.

  5. Science, technology, engineering, and mathematics - Wikipedia

    en.wikipedia.org/wiki/Science,_technology...

    In the early 1990s the acronym STEM was used by a variety of educators. Charles E. Vela was the founder and director of the Center for the Advancement of Hispanics in Science and Engineering Education (CAHSEE) [6] [7] [8] and started a summer program for talented under-represented students in the Washington, D.C. area called the STEM Institute.

  6. Twelfth grade - Wikipedia

    en.wikipedia.org/wiki/Twelfth_grade

    A 12th grade visual arts class in Scott County, Virginia in the United States. Twelfth Grade (also known as 12th Grade, Grade 12, Senior Year, Standard 12, 12th Standard, Class 12 or 12th Class) is the twelfth and final year of formal or compulsory education. It is typically the final year of secondary school and K–12 in most parts of the ...

  7. Puzzle - Wikipedia

    en.wikipedia.org/wiki/Puzzle

    In certain regions, PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition and Subtraction) is the synonym of BODMAS. It explains the order of operations to solve an expression. Some mathematical puzzles require top to bottom convention to avoid the ambiguity in the order of operations.

  8. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Developmental psychobiology posed this question since the lack of knowledge about the precise coordination of all cells, even those not related anatomically, in space and time during the embryonic period does not allow us to understand what forces at the cellular level coordinate four very general classes of tissue deformation, namely: tissue ...

  9. Higher Secondary Certificate - Wikipedia

    en.wikipedia.org/wiki/Higher_Secondary_Certificate

    There are many streams students can choose for their 11 and 12 grades, including pre-medical, pre-engineering, humanities (or social sciences), computer science and commerce. Each stream consists of three electives and as well as three compulsory subjects of English, Urdu, Islamiyat (grade 11 only) and Pakistan Studies (grade 12 only).