Pattapol KongwattananonLavalin KanjanaboseKrittaya LeelawongChinda TangwongsanMahidol University International College. Science Division.2015-09-082018-12-252015-09-082018-12-2520152011https://repository.li.mahidol.ac.th/handle/20.500.14594/40252ICCE 2011: 19th International Conference on Computers in Education, Chiang Mai, Thailand.Fitting a whole lesson in a mobile phone is not easy, especially when we wish to enhance the user’s experience to motivate his or her learning. The application has to provide contents and assessments in a way that is attractive to the user and digested enough to be used in a short time frame while waiting for friends or bused but also can be used for a full review of the materials. Trigonica introduces the concepts of trigonometry in three short lessons with hand-on activities. The learner can take a dynamic quiz after each lesson and also a comprehensive quiz. The user can also share their experience with his or her community via Facebook posts after finishing a quiz.engMahidol UniversityTrigonometrym-LearningiOS learning appProceeding Book