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  2. Grade (climbing) - Wikipedia

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

    The IFAS system (or UIAA Scale of Overall Difficulty), also called the French Alpine System (or Alpine System), [3] [26] grades the overall difficulty of a route, taking into account the length, technical difficulties, exposure, and commitment level (i.e. how hard is a retreat).

  3. Difficulty - Wikipedia

    en.wikipedia.org/wiki/Difficulty

    Difficulty or Difficult may refer to: A problem; Degree of difficulty, in sport and gaming; Counter-majoritarian difficulty, in legal theory; Difficult, Tennessee, a community in the United States "Difficult" (song), by Uffie; Hill Difficulty, a fictional place in the 1678 Christian allegory The Pilgrim's Progress

  4. Learning disability - Wikipedia

    en.wikipedia.org/wiki/Learning_disability

    Learning disability, learning disorder, or learning difficulty (British English) is a condition in the brain that causes difficulties comprehending or processing information and can be caused by several different factors. Given the "difficulty learning in a typical manner", this does not exclude the ability to learn in a different manner.

  5. Degree of difficulty - Wikipedia

    en.wikipedia.org/wiki/Degree_of_difficulty

    The FIG gives difficulty points for number of somersaults, number of body twists and the body position in somersaults (piked or straight). The total sum of the individual elements forms the difficulty score component of competitor's final score: [14] [15] Each 1/4 rotation of a somersault = 0.1 DD; Completed 360° somersault (bonus) = 0.1 DD

  6. Desirable difficulty - Wikipedia

    en.wikipedia.org/wiki/Desirable_difficulty

    This is a desirable difficulty because it requires more effort and forces the student to do more complex processing. At first, learning with desirable difficulties may take longer and the student may not feel as confident, but over time knowledge will be retained better. [2] The term was first coined by Robert A. Bjork in 1994. [3]

  7. Trail difficulty rating system - Wikipedia

    en.wikipedia.org/wiki/Trail_difficulty_rating_system

    A trailhead signage that shows the grade of a walking path at a park in Sydney, Australia.. A trail difficulty rating system, also known as walking track grading system, walk gradings or trail grades, is a classification system for trails or walking paths based on their relative technical and physical difficulty. [1]

  8. 10 Hard Math Problems That Even the Smartest People in the ...

    www.aol.com/10-hard-math-problems-even-150000090...

    Some math problems have been challenging us for centuries, and while brain-busters like these hard math problems may seem impossible, someone is bound to solve ’em eventually. Well, m aybe .

  9. Technical Difficulties - Wikipedia

    en.wikipedia.org/wiki/Technical_Difficulties

    Technical difficulties are unforeseen equipment problems such as hardware failures or software bugs that make it difficult or impossible to perform a desired action. Technical difficulties or Technical Difficulties may also refer to: Technical Difficulties (filk group) Technical Difficulties (Racer X album) Technical Difficulties (Training for ...