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  2. Are You Smarter than a 5th Grader? - Wikipedia

    en.wikipedia.org/wiki/Are_You_Smarter_than_a_5th...

    The main fifth-grade questions are removed, and the only one from that grade was the bonus question. Contestants must start at the first grade and cannot skip a grade. At least one question from each grade must be answered or have used a cheat on, 1 to 3, before they can roam the board freely.

  3. Area - Wikipedia

    en.wikipedia.org/wiki/Area

    The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object. Area can be understood as the amount of material with a given thickness that would be necessary to fashion a model of the shape, or the amount of paint ...

  4. Signed area - Wikipedia

    en.wikipedia.org/wiki/Signed_area

    The blue area above the x-axis may be specified as positive area, while the yellow area below the x-axis is the negative area. The integral of a real function can be imagined as the signed area between the x {\displaystyle x} -axis and the curve y = f ( x ) {\displaystyle y=f(x)} over an interval [ a , b ].

  5. Area of a circle - Wikipedia

    en.wikipedia.org/wiki/Area_of_a_circle

    The square gets sent to a rectangle circumscribing the ellipse. The ratio of the area of the circle to the square is π /4, which means the ratio of the ellipse to the rectangle is also π /4. Suppose a and b are the lengths of the major and minor axes of the ellipse. Since the area of the rectangle is ab, the area of the ellipse is π ab/4.

  6. Kindergarten - Wikipedia

    en.wikipedia.org/wiki/Kindergarten

    Kindergarten classes (grade 0) were made mandatory in 2009 and are offered by primary schools before a child enters first grade. Two-thirds of established day care institutions in Denmark are municipal day care centres while the other third are privately owned and are run by associations of parents or businesses in agreement with local ...

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