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  2. Hilbert's problems - Wikipedia

    en.wikipedia.org/wiki/Hilbert's_problems

    Problems 1, 2, 5, 6, [a] 9, 11, 12, 15, and 22 have solutions that have partial acceptance, but there exists some controversy as to whether they resolve the problems. That leaves 8 (the Riemann hypothesis), 13 and 16 [b] unresolved. Problems 4 and 23 are considered as too vague to ever be described as solved; the withdrawn 24 would also be in ...

  3. Word problem (mathematics education) - Wikipedia

    en.wikipedia.org/wiki/Word_problem_(mathematics...

    Word problem from the Līlāvatī (12th century), with its English translation and solution. In science education, a word problem is a mathematical exercise (such as in a textbook, worksheet, or exam) where significant background information on the problem is presented in ordinary language rather than in mathematical notation.

  4. The Hardest Logic Puzzle Ever - Wikipedia

    en.wikipedia.org/wiki/The_Hardest_Logic_Puzzle_Ever

    The Hardest Logic Puzzle Ever is a logic puzzle so called by American philosopher and logician George Boolos and published in The Harvard Review of Philosophy in 1996. [1] [2] Boolos' article includes multiple ways of solving the problem.

  5. Language barrier - Wikipedia

    en.wikipedia.org/wiki/Language_barrier

    English language serves as the basic instruction language in the Nigeria education system. It is a measure of the evaluation of student's school performance, hence the need for it being a compulsory subject in Nigerian's schools. After independence, the Nigerian educational system remained the same as the colonial era. In Nigeria, English ...

  6. English as a second or foreign language - Wikipedia

    en.wikipedia.org/wiki/English_as_a_second_or...

    English language teaching (ELT) is a widely used teacher-centered term, as in the English language teaching divisions of large publishing houses, ELT training, etc. Teaching English as a second language (TESL), teaching English to speakers of other languages (TESOL), and teaching English as a foreign language (TEFL) are also used. [citation needed]

  7. Problem-based learning - Wikipedia

    en.wikipedia.org/wiki/Problem-based_learning

    Problem-based learning (PBL) is a teaching method in which students learn about a subject through the experience of solving an open-ended problem found in trigger material. The PBL process does not focus on problem solving with a defined solution, but it allows for the development of other desirable skills and attributes. This includes ...

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    www.aol.com/products/utilities/ad-free-mail

    Ad-Free AOL Mail offers you the AOL webmail experience minus paid ads, allowing you to focus on your inbox without distractions, for just $4.99 per month. Get Ad-Free AOL Mail Get a more ...

  9. Speech error - Wikipedia

    en.wikipedia.org/wiki/Speech_error

    Speech errors are made on an occasional basis by all speakers. [1] They occur more often when speakers are nervous, tired, anxious or intoxicated. [1] During live broadcasts on TV or on the radio, for example, nonprofessional speakers and even hosts often make speech errors because they are under stress. [1]

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