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  2. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    The top grade, A, is given here for performance that exceeds the mean by more than 1.5 standard deviations, a B for performance between 0.5 and 1.5 standard deviations above the mean, and so on. [17] Regardless of the absolute performance of the students, the best score in the group receives a top grade and the worst score receives a failing grade.

  3. Mathematics education in the United States - Wikipedia

    en.wikipedia.org/wiki/Mathematics_education_in...

    Mathematics education in the United States varies considerably from one state to the next, and even within a single state. However, with the adoption of the Common Core Standards in most states and the District of Columbia beginning in 2010, mathematics content across the country has moved into closer agreement for each grade level.

  4. Homework - Wikipedia

    en.wikipedia.org/wiki/Homework

    Closing the Book on Homework: Enhancing Public Education and Freeing Family Time by John Buell (2004) The Battle Over Homework: Common Ground for Administrators, Teachers, and Parents by Harris Cooper Archived 2012-07-23 at the Wayback Machine (2007) The Homework Myth: Why Our Kids Get Too Much of a Bad Thing by Alfie Kohn (2006)

  5. Elementary mathematics - Wikipedia

    en.wikipedia.org/wiki/Elementary_mathematics

    Both groups are equal to 5. Apples are frequently used to explain arithmetic in textbooks for children. [1] Elementary mathematics, also known as primary or secondary school mathematics, is the study of mathematics topics that are commonly taught at the primary or secondary school levels around the world.

  6. The Creative Way the Pufferfish Attracts a Mate - AOL

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    How the Male Pufferfish Attracts a Mate. In the world of animals, it can be hard to be a male looking for a mate. Some animals, such as lions, need beautiful, full manes to attract females.Others ...

  7. Kind Man Helps Terrified Shepherd Reunite with Family After ...

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    That's a beautiful way to kick off the new year! This sweet young dog was clearly frightened, even as he decompressed in the safety of Jon's car.

  8. Top industrial CEOs warn Trump's tariff and budget plans ...

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    Business leaders warn of risks from inflationary tariffs and potential budget cuts at Goldman Sachs' Industrial and Materials conference.

  9. Eureka (University of Cambridge magazine) - Wikipedia

    en.wikipedia.org/wiki/Eureka_(University_of...

    Eureka includes many mathematical articles on a variety of different topics – written by students and mathematicians from all over the world – as well as a short summary of the activities of the society, problem sets, puzzles, artwork and book reviews.