P. Nelson, K. Kohnert, and S. Sabur, Classroom Noise and Children Learning Through a Second Language, Language Speech and Hearing Services in Schools, vol.36, issue.3, pp.219-229, 2005.
DOI : 10.1044/0161-1461(2005/022)

B. Shield and J. Dockrell, The Effects of noise on the attainments and cognitive performance of primary school children: executive summary. Report for the UK's Department of, Health, 2002.

R. Walinder, K. Gunnarsson, R. Runeson, and G. Smedje, Physiological and psychological stress reactions in relation to classroom noise. Scandinavian journal of work, environment & health, vol.33, issue.4, pp.260-266, 2007.

I. Enmarker and E. Boman, Noise annoyance responses of middle school pupils and teachers, Journal of Environmental Psychology, vol.24, issue.4, pp.527-536, 2004.
DOI : 10.1016/j.jenvp.2004.09.005

R. I. Arends, Aprender a Ensinar, Portugal, 1995.

R. M. Alvear, G. Martínez-arquero, F. J. Barón, and A. Hernández-mendo, An Interdisciplinary Approach to Teachers' Voice Disorders and Psychosocial Working Conditions, International Journal of Phoniatrics, Speech Therapy and Communications Pathology, vol.62, pp.1-2, 2010.

N. Roy, R. M. Merrill, S. Thibeault, S. D. Gray, and E. M. Smith, Voice Disorders in Teachers and the General Population, Journal of Speech Language and Hearing Research, vol.47, issue.3, pp.542-551, 2004.
DOI : 10.1044/1092-4388(2004/042)

E. Nerrière, M. Vercambre, F. Gilbert, and V. Kovess-masféty, Voice disorders and mental health in teachers: a cross-sectional nationwide study, BMC Public Health, vol.21, issue.1, p.370, 2009.
DOI : 10.1016/j.jvoice.2006.07.002

C. Gassull, C. Casanova, Q. Botey, and M. Amador, The Impact of the Reactivity to Stress in Teachers with Voice Problems, Folia Phoniatrica et Logopaedica, vol.62, issue.1-2, pp.1-2, 2010.
DOI : 10.1159/000239061

L. Hall, S. Jones, A. Paiva, and R. Aylett, FearNot!, Proceedings of the 8th International Conference on Interaction Design and Children, IDC '09, 2009.
DOI : 10.1145/1551788.1551854

P. Lobo, T. Romão, E. A. Dias, J. C. Danado, M. Tscheligi et al., A Framework to Develop Persuasive Smart Environments, Proceedings of the European Conference on Ambient Intelligence, pp.225-234, 2009.
DOI : 10.1007/978-3-642-05408-2_27

A. Gustafsson, M. Bång, and M. Svahn, Power explorer, Proceedings of the International Conference on Advances in Computer Enterntainment Technology, ACE '09, pp.182-189, 2009.
DOI : 10.1145/1690388.1690419

T. Lin, K. Chang, S. Liu, and H. Chu, A persuasive game to encourage healthy dietary behaviors of young children, Demo Paper & Adjunct Proceedings of the 8th International Conference on Ubiquitous Computing, 2006.

C. Soler, A. Zacarías, and A. Lucero, Molarcropolis, Proceedings of the International Conference on Advances in Computer Enterntainment Technology, ACE '09, pp.388-391, 2009.
DOI : 10.1145/1690388.1690468

T. Bekker, J. Sturm, and B. Eggen, Designing playful interactions for social interaction and physical play, Personal and Ubiquitous Computing, pp.385-396, 2010.
DOI : 10.1007/s00779-009-0264-1

R. Khaled, P. Barr, R. Biddle, R. Fischer, and J. Noble, Game design strategies for collectivist persuasion, Proceedings of the 2009 ACM SIGGRAPH Symposium on Video Games, Sandbox '09, pp.31-38, 2009.
DOI : 10.1145/1581073.1581078

R. Oliveira, M. Cherubini, and N. Oliver, MoviPill, Proceedings of the 12th ACM international conference on Ubiquitous computing, Ubicomp '10, pp.251-260, 2010.
DOI : 10.1145/1864349.1864371

E. Rosenbaum, E. Klopfer, B. Boughner, and L. Rosenheck, Engaging students in science controversy through an augmented reality role-playing game, Proceedings of the 8th iternational conference on Computer supported collaborative learning, CSCL'07, pp.612-614, 2007.
DOI : 10.3115/1599600.1599716

L. Gamberini, L. Breda, and A. Grassi, VIDEODOPE: Applying Persuasive Technology to Improve Awareness of Drugs Abuse Effects, Proceedings of the 2nd international conference on Virtual reality, pp.633-641, 2007.
DOI : 10.1007/978-3-540-73335-5_68

T. Hirsch, Water wars, Proceedings of the 8th ACM Conference on Designing Interactive Systems, DIS '10, pp.340-343, 2010.
DOI : 10.1145/1858171.1858232

D. Shastri, Y. Fujiki, R. Buffington, and P. Tsiamyrtzis, Pavlidis, I.: O job can you return my mojo: improving human engagement and enjoyment in routine activities, Proceedings of the 28th international conference on Human factors in computing systems, 2010.

C. Botella, J. Breton-lópez, S. Quero, R. M. Baños, A. García-palacios et al., Treating cockroach phobia using a serious game on a mobile phone and augmented reality exposure: A single case study, Computers in Human Behavior, vol.27, issue.1, 2011.
DOI : 10.1016/j.chb.2010.07.043

G. W. Schmidt and R. E. Ulrich, Effects of group contingent events upon classroom noise1, Journal of Applied Behavior Analysis, vol.2, issue.3, pp.171-179, 1969.
DOI : 10.1901/jaba.1969.2-171

URL : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1311060

H. R. Strang and J. R. George, Clowning around to stop clowning around: a brief report on an automated approach to monitor, record, and control classroom noise, Journal of Applied Behavior Analysis, vol.8, issue.4, pp.471-474, 1975.
DOI : 10.1901/jaba.1975.8-471

URL : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1311884

J. W. Groff, Tamperproof classroom noise alarm. United States Patent, Patent number: 4654642, Filing date, 1985.