Main Page | See live article | Alphabetical index in various contexts: Any the finite set of values (typically 1, 2, 3..., I, II, III..., A, B, C...), used in a particular grade system to designate the corresponding groups, each group regarded as sufficiently similar in complex attributes (such as performance, quality, size, rank, etc.) to be classified together for some purpose, including in education, either a teacher's evaluation of a student's work: see Grade (education), or a student's level of educational progress in school, see: Education or Education by country in sports, degree of difficulty of a challenge, including: Grade (climbing) Grade (bouldering) In telecommunication: Grade of service in geography, railroad engineering, and other contexts sensitive to topography, a percentage ratio of elevation differential to distance (also called gradient, and a case of mathematical slope): see grade (geography) in mathematics, a unit for the measurement of plane angles: see gon see also graded algebra. in moving-image (motion pictures and television) post-production, to grade is to perform the process (also called "color-timing") of color-correcting images. Grade is a Hardcore punk rock band of the Emo genre. See also: Rating This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.