Eurhythmics (also Rhythmic Gymnastics, Rhythmics) is an approach to music education that was devised by Emile Jaques-Dalcroze. This method utilizes the expression of physical movement and musical rhythms to reinforce the concepts which affect the student’s performance and retention of musical basics.

It is the expression of physical and musical rhythms and the basic laws affecting their performance. Through participation in simple games, exercises and improvisations the students learn to combine music and movement in order to develop rhythmic unity between the eye, ear, mind and body. The definition of eurhythmics can get more complicated, “Of all music teaching methods, the Dalcroze approach is probably the most nebulous to define. That's because it lives in the teachers themselves, not in specific books, songs, or other materials. Specific branches, principles, and strategies form a common thread among Dalcrozians, while teachers may differ greatly in their interests, skills, and teaching styles (Dale, Monica).”

http://en.wikipedia.org/wiki/Eurhythmics

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Note added at 9 mins (2008-10-30 09:48:06 GMT)
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Looks like it is the accepted spelling:

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