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In plane geometry, the einstein problem asks about the existence of a single prototile that by itself forms an aperiodic set of prototiles; that is, a shape that can tessellate space but only in a nonperiodic way.
These well-structured source files can be used to create accessible specialized formats (i.e., braille, audio, e-text, large print, etc.) of print instructional materials. The full set of files includes XML content files, a package file, images, and a PDF file of the title page (or whichever page contains ISBN and copyright information).
English: Open educational resources (OER) are materials used to support education that may be freely accessed, reused, modified and shared. These Guidelines outline key issues and make suggestions for integrating OER into higher education.
The term can also be used for non-periodic or aperiodic signals, like chirps and pulses. [3] In electronics, the term is usually applied to time-varying voltages, currents, or electromagnetic fields. In acoustics, it is usually applied to steady periodic sounds — variations of pressure in air or other media.
Harmonic Materials of Modern Music is a book on musical set theory by American composer Howard Hanson that overlaps significantly with composer Elliott Carter's Harmony Book and theorist Allen Forte's subsequent Structure of Atonal Music. Published in 1960, Hanson's theory was one of the first to examine all sets of pitches in terms of their ...
Throughout the history of music education, many music educators have adopted and implemented technology in the classroom. Alice Keith and D.C. Boyle were said to be the first music educators in the United States to use the radio for teaching music. Keith wrote Listening in on the Masters, which was a broadcast music appreciation course. [44]
After the conclusion of the Yale Seminar, Dean Gideon Waldrop of Juilliard applied for a grant from the United States Office of Education to develop a large body of authentic and meaningful music materials to augment and enrich the repertory available to music teachers in the early grades. The grant was approved and the Project was established ...
Some definitions refer to music as a score, or a composition: [18] [7] [19] music can be read as well as heard, and a piece of music written but never played is a piece of music notwithstanding. According to Edward E. Gordon the process of reading music , at least for trained musicians, involves a process, called "inner hearing" or "audiation ...