Free Essays on Sound Of Music

Sounds of Music In music there are a variety of instruments that display the color of harmonies, when they are played in an orchestra or a band. The ranges of their sounds spans from the lowest pitch of a contrabass to the highest pitch of a piccolo. Moreover their classification derives by the group or section to which they belong. The classification of instruments in music is divided into three broad classes or families which are percussion, string and wind. Many instruments have more than one characteristic and fall into more than one class. The piano, for example, is a string instrument as well as a percussion instrument. Moreover in the group of percussion, the description of some of these instruments is very similar, since some of them consist of a drum shape. For example the typical description of any drum consist of a wooden cylinder that or hemispheres with calfskin stretched tightly one or both ends to form the head. In the performance of percussion instruments, there are several of them that are executed in two ways. For instance some of these instruments are played with the palms of the hands or by using wooden sticks. The procedure when playing with the palms of the hand is as follow: both hands tap or strike simultaneously the head of the drum. In order to produce a different sound at the same time, the performer places one hand on the calfskin of the drum while strikes it with the other. The strength of the strike depends on the type of dynamic the performer is using. A good example of this kind of instrument is the conga. The conga consist of a wooden cylinder that or hemispheres with calfskin that stretches tightly the ends of the cylinder to form the head. The tension of the head is control by rods and screws. The purpose of such tension is to produce different sounds or to tune the instrument. Another way of playing percussion instruments is by using wooden sticks. This is the case in th e drumset. The dr... Free Essays on Sound Of Music Free Essays on Sound Of Music Sounds of Music In music there are a variety of instruments that display the color of harmonies, when they are played in an orchestra or a band. The ranges of their sounds spans from the lowest pitch of a contrabass to the highest pitch of a piccolo. Moreover their classification derives by the group or section to which they belong. The classification of instruments in music is divided into three broad classes or families which are percussion, string and wind. Many instruments have more than one characteristic and fall into more than one class. The piano, for example, is a string instrument as well as a percussion instrument. Moreover in the group of percussion, the description of some of these instruments is very similar, since some of them consist of a drum shape. For example the typical description of any drum consist of a wooden cylinder that or hemispheres with calfskin stretched tightly one or both ends to form the head. In the performance of percussion instruments, there are several of them that are executed in two ways. For instance some of these instruments are played with the palms of the hands or by using wooden sticks. The procedure when playing with the palms of the hand is as follow: both hands tap or strike simultaneously the head of the drum. In order to produce a different sound at the same time, the performer places one hand on the calfskin of the drum while strikes it with the other. The strength of the strike depends on the type of dynamic the performer is using. A good example of this kind of instrument is the conga. The conga consist of a wooden cylinder that or hemispheres with calfskin that stretches tightly the ends of the cylinder to form the head. The tension of the head is control by rods and screws. The purpose of such tension is to produce different sounds or to tune the instrument. Another way of playing percussion instruments is by using wooden sticks. This is the case in th e drumset. The dr...

Definition and Purpose of a Heterogeneous Class

Definition and Purpose of a Heterogeneous Class Heterogeneous groups  in educational settings include students from a wide range of instructional levels. The practice of assigning mixed groups of students to shared classrooms stems from the education precept that positive interdependence develops when students of varying achievement work together and help each other reach educational goals. Heterogeneous groups contrast  directly with homogeneous groups, in which all students perform at roughly the same instructional level. Examples of Heterogeneous Groups A teacher may deliberately pair low-, medium-, and high-level readers (as measured by reading assessments) together in a heterogeneous group to read and analyze a given text together. This type of cooperative group can improve outcomes for all of the students as the advanced readers can tutor their lower-performing peers. Rather than putting gifted students, average students, and special-needs students in separate classrooms, school administrators may divide students into classes with a relatively even distribution of abilities and needs. Teachers may then further divide the group during instructional periods using either the heterogeneous or homogeneous model. Advantages For students of lesser ability, being included in a heterogeneous group rather than pigeonholed into a homogeneous group reduces their risk of being stigmatized. And labels that classify academic skill can become self-fulfilling prophecies as teachers may lower expectations for students in special-needs classrooms. They may not challenge those students to perform well and may rely on limited curriculum that restricts exposure to concepts some students could, in fact, learn. A heterogeneous group gives advanced students a chance to mentor their peers. All members of the group may interact more to help each other understand the concepts being taught. Disadvantages Students, parents, and teachers may prefer to work in a homogeneous group or be part of a homogeneous classroom. They may see an educational advantage or just feel more comfortable working with peers of similar ability. Advanced students in a heterogeneous group may at times feel forced into a leadership role they do not want. Rather than learning new concepts at their own speed, they must slow down to assist other students or curtail their own study to proceed at the rate of the whole class. In a heterogeneous grouping, advanced students may take the role of co-teacher, rather than advancing their own skills. Students of lesser abilities may fall behind in a heterogeneous group and may be criticized for slowing the rate of the whole class or group. In a study or work group, unmotivated or academically challenged students may be ignored rather than assisted by their peers. Management of a Heterogeneous Classroom Teachers need to remain aware and recognize when a heterogeneous grouping does not function properly for a student at any level. Teachers should support advanced students by supplying additional academic challenges and help students who fall behind receive the assistance they need to catch up. And students in the middle of a heterogeneous group face the risk of getting lost in the shuffle as the teacher concentrates on the special needs of students at either end of the spectrum.