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  2. RateMyProfessors.com - Wikipedia

    en.wikipedia.org/wiki/RateMyProfessors.com

    May 1999; 25 years ago (1999-05) RateMyProfessors.com (RMP) is a review site founded in May 1999 by John Swapceinski, a software engineer from Menlo Park, California, which allows anyone to assign ratings to professors and campuses of American, Canadian, and United Kingdom institutions. [1] The site was originally launched as TeacherRatings.com ...

  3. International scale of river difficulty - Wikipedia

    en.wikipedia.org/wiki/International_scale_of...

    Class III rapid at Canolfan Tryweryn, Wales. The international scale of river difficulty is an American system used to rate the difficulty of navigating a stretch of river, or a single (sometimes whitewater) rapid. [1] The scale was created by the American Whitewater Association to evaluate rivers throughout the world, hence international in ...

  4. Grade (climbing) - Wikipedia

    en.wikipedia.org/wiki/Grade_(climbing)

    The American YDS (or 'Yosemite Decimal System') was developed independently by climbers at Tahquitz Peak who adapted the class 5 rating of Sierra Club Class 1–5 system in the 1950s. [4] As a result, the system has a "5" as its prefix which is then followed by a decimal point and a number that starts at 1 and counts up with increasing ...

  5. ADHD Rating Scale: What It Is and How to Understand It

    www.healthline.com/health/adhd/rating-scale

    Rating scales will ask you to score behaviors, typically on a point scale of 0-3 or 4. Usually, 0 means never, and 3 or 4 means very often and the higher the score, the more severe the symptom ...

  6. 11 Ways to Stay Awake in Class - Healthline

    www.healthline.com/health/how-to-stay-awake-in-class

    Light up your day. Change seats. Pop a mint. Relax. Dress up. Takeaway. Sticking to a healthy sleep schedule, making sure you’re properly hydrated, and downing a cup (or two) of caffeinated tea ...

  7. What Is Postural Orthostatic Tachycardia Syndrome (POTS)? - WebMD

    www.webmd.com/heart-disease/atrial-fibrillation/...

    When you have POTS, most of your blood stays in your lower body when you stand up, and in response, your heart rate jumps. This can lead to dizziness, fainting, and other symptoms. Researchers ...

  8. How to Improve Concentration: 14 Tips - Healthline

    www.healthline.com/health/mental-health/how-to...

    Playing certain types of games can help you get better at concentrating. Try: sudoku. crossword puzzles. chess. jigsaw puzzles. word searches or scrambles. memory games. A 2015 study of 4,715 ...

  9. Desirable difficulty - Wikipedia

    en.wikipedia.org/wiki/Desirable_difficulty

    Desirable difficulty. A desirable difficulty is a learning task that requires a considerable but desirable amount of effort, thereby improving long-term performance. It is also described as a learning level achieved through a sequence of learning tasks and feedback that lead to enhanced learning and transfer. [1]