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Classroom Acoustics and Student Learning 1 CEFPI Workshop Darwin 2009 Improving Hearing Health in Classrooms to boost Student Learning and Teacher Wellness.

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Presentation on theme: "Classroom Acoustics and Student Learning 1 CEFPI Workshop Darwin 2009 Improving Hearing Health in Classrooms to boost Student Learning and Teacher Wellness."— Presentation transcript:

1 Classroom Acoustics and Student Learning 1 CEFPI Workshop Darwin 2009 Improving Hearing Health in Classrooms to boost Student Learning and Teacher Wellness

2 Classroom Acoustics and Student Learning 2 Today we will discuss how: Noise pollution limits each learners ability to comprehend The peril of distance impedes the peak performance of young brains Teacher wellness can be boosted Not all children are the same and they do not have all word files Hearing Health of classrooms can be instantly improved to benefit the educational ambitions of students, teachers, administrators and architects

3 Classroom Acoustics and Student Learning 3 Aging and changing infrastructure More ESL studentsLarger classrooms More vulnerable learners Literacy and numeracy assessment/funding Teacher wellness All children do not have all words files installed yet – two thirds heard is two thirds learned Learning today involves ….

4 Classroom Acoustics and Student Learning 4 External Noise Internal School Noise Ambient Noise is measured in an empty classroom Classroom Noise Noise pollution reduces the ability of young brains to capture and process the sounds of teaching Barriers to Hearing Clearly

5 Classroom Acoustics and Student Learning 5 Typical Ambient Noise: 45 dB Hyper Physics C.R. Nave, 2005) Inverse Square Law The Inverse Square Law: Voice level is reduced by 50% each time the distance from the sound source doubles.

6 Classroom Acoustics and Student Learning 6 Directionality and distance The further a learner is away from a sound source, the less they get. Visual technology can compound the problem

7 Classroom Acoustics and Student Learning 7 Teacher wellness: FatigueStressJob SatisfactionIllness Teachers with voice related problems are on the rise 18% miss work each year due to voice issues 43% reduce instructional activity National estimated cost - $2.5B 2004 Source: Parker & McDade 2004 Other Issues Now Linked to Classroom Hearing Health

8 Classroom Acoustics and Student Learning 8 Not all Children are the same Conductive hearing loss Fluctuating hearing loss Central auditory processing disorders Developmental delays Attention deficits Minimal hearing loss Language delays Culturally and linguistically diverse Articulation disorders English as a second language 6:1 boys

9 Classroom Acoustics and Student Learning 9 How can technology improve Hearing Health?

10 Classroom Acoustics and Student Learning 10 How It Works: Capture all the sounds of teaching in huggable way

11 Classroom Acoustics and Student Learning 11 Delivery Consider technology which embraces Wide dynamic range to ensure consonant sounds are delivered to maximize speech intelligibility Voice capture for all presenters Best distribution to compliment aesthetics and purposes

12 Classroom Acoustics and Student Learning 12 Alters frequency delivery to compliment the room Spread of frequencies

13 Classroom Acoustics and Student Learning 13 NXT Technology –Entire panel projects sound in all directions –VERY wide dispersion of sound –Excellent reproduction of high vocal-range frequencies Cone Speaker Technology –VERY directional –Best for larger rooms with more complex demands Single NXT Speaker Cone Speakers Speaker Technology

14 Classroom Acoustics and Student Learning 14 MINI WALL SPEAKER MCQ Multimedia CEILING SPEAKER NXT FLAT-PANEL WALL SPEAKER CEILING SPEAKER Delivery Different designs and purposes of learning spaces Minimize adoption threats

15 Classroom Acoustics and Student Learning 15 What are teachers and school administrators saying about Classroom Sound Enhancement? It makes words sound clearer. For example I dont have to ask what was the word again and again. Its just great and clearer. I just love it Student, Sunshine Coast Grammar Delivery of clearer and more easily understood instructions has enabled the students at the back of the room to become part of the class and they are less likely to be disengaged and distracted. The quieter students now feel that they can have the opportunity to be involved. The opportunity to quickly and efficiently use the huge range of resources on the internet (including sound resources) has positively impacted my classroom Cronulla High The gentle amplification of the teacher's voice enables boys to more clearly hear what is being taught or asked, meaning for the first time, some boys are able to be focussed right from the start of a lesson, rather than in the follow up phase. It is even more impressive when boys themselves realise the impact this has on their ability to learn Scotch College Junior School, Melbourne. We have just had a revolutionary new classroom sound system put in each classroom here as part of our redevelopment. The feedback from the boys has been incredibly positive and we have only had it in less than a week. Newington Preparatory School

16 Classroom Acoustics and Student Learning 16 Formative Assessment Action Research National Studies Enhancing the delivery of the sounds of teacher is a key The teacher – student connection is at the heart of learning Research Findings

17 Classroom Acoustics and Student Learning 17 Classroom Sound Enhancement Validated Massie, R. (2003). The impact of sound field amplification in mainstream classrooms. This study supports the use of sound-field amplification to advance the acquisition of literacy and numeracy skills for children in mainstream classrooms, and not only for those children with identified hearing loss or with ESL backgrounds. Sound-field amplification may be viewed as a cost-effective part of the solution to improving classroom listening environments for all children.

18 Classroom Acoustics and Student Learning Positive Changes in Student Functioning 1. Increased students attention spans 2. Decrease in need for behavior management 3. Decreased number of requests for repetition % decrease in teacher redirection 5. Decreased vocal strain and fatigue for teachers Independent Trost Study December 2002; Language, Speech and Hearing Services in Schools October 2000; Language Speech and Hearing in Services in Schools July 1990.

19 Classroom Acoustics and Student Learning Positive Changes in Student Functioning 6. 35% increase in reading fluency % growth in test scores % decrease in teacher redirection 9. Improved academic achievement 10. Decreased Special Education referrals Independent Trost Study December 2002; Language, Speech and Hearing Services in Schools October 2000; Language Speech and Hearing in Services in Schools July 1990.

20 Classroom Acoustics and Student Learning 20 Summary

21 Classroom Acoustics and Student Learning 21 Summary Classrooms are polluted with noise Not all learners are close to sound sources Not all children are the same There are many sounds of teaching we need to embrace and plan for Hearing is fundamental to learning Optimizing hearing health is simple, huggable and cost effective The results are proven and easy to understand

22 Classroom Acoustics and Student Learning 22 This concludes the Hear and Learn / Lightspeed CEFPI Darwin Workshop September 2009 Hear and Learn-Classroom Sound Enhancement LIGHTSPEED TECHNOLOGIES Ph Fax: David Downing-Director Thomas Roth-Dir. International Business Development Questions?


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