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- Talking drums
Your students may appreciate a demonstration that stretching and relaxing an "instrument" will raise and lower its pitch. Consider doing one of the following:
- The simplest way to demonstrate this is with rubber bands. Let one student stretch a rubber band between two fingers while another student plucks it. Listen to the sound the rubber band makes; the tighter it is stretched, the higher the sound. If it is stretched or relaxed quickly immediately after being plucked, you may even be able to hear the pitch slide up or down, just like it does in a talking drum.
- Many hobby books on making musical instruments include instructions for making a drum with a stretched head held in place by strings. If it is made of good materials, you should be able to change the pitch of such a drum by tightening or loosening the strings. Pursue this only if you are interested in a major class project which will require specific materials and take several hours.
- You may be able to get a local band director or percussionist to bring in some drums with heads that can be tightened and loosened to change the pitch. Ask for a demonstration, and an explanation of the methods of tightening and loosening drum heads. Many percussionists won't have a waisted drum, but many other drums (such as orchestral tympani) are also "tunable".
- The basic idea can also be demonstrated with any stringed instrument (guitar, violin, banjo, cello, etc.): as you turn the tuning peg you are winding or unwinding the string, making it tighter or looser.
Activity: tonal languages
Objectives and standards
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Objectives - Students will actively participate in a demonstration of how tonality affects meaning even in a nontonal language, by demonstrating and explaining how different inflections cause slight differences in the meaning of a short word or phrase in English.
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Music Standards Addressed -
National Standards for Music Education standards 8 (understanding relationships between music, the other arts, and disciplines outside the arts) and 9 (understanding music in relation to history and culture).
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Other Subjects Addressed - The activity also addresses
National Standards in the Social Studies standard 1 (culture), and
National Standards for the English Language Arts standards 4 (Students adjust their use of spoken, written, and visual language (e.g., conventions, style, vocabulary) to communicate effectively with a variety of audiences and for different purposes.) and 9 (Students develop an understanding of and respect for diversity in language use, patterns, and dialects across cultures, ethnic groups, geographic regions, and social roles).
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Evaluation - Assess student learning by
evaluating class participation or asking relevant questions in an oral review or on a written test: e.g. "What is a tonal language?"
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Adaptations - For best comprehension, this activity should be presented to students using their native language, dialect, and accent. The teacher should adjust the activity accordingly.
English is not a tonal language, so it can be difficult for English speakers to appreciate how important inflection is in tonal languages. Here is a short activity that can help and requires no materials or preparation.
Questions & Answers
how does Neisseria cause meningitis
is the branch of biology that deals with the study of microorganisms.
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
How bacteria create energy to survive?
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
which site have a normal flora
Many sites of the body have it
Skin
Nasal cavity
Oral cavity
Gastro intestinal tract
Safaa
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Binomial nomenclature
adeolu
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Source:
OpenStax, Noisy learning: loud but fun music education activities. OpenStax CNX. May 17, 2007 Download for free at http://cnx.org/content/col10222/1.7
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