Bingo is a universally known, popular, and easy-toplay game. Following Bingo rules with some modifications, we have designed and implemented a game, called EduBingo, for practicing mathematics fractions. The game was implemented and experimented in a 'one-to-one' technology enhanced classroom, where every student learns with a wireless enabled computing device. The experiment investigated students' preferences, system usability, as well as the effects on their affective states of a grade 4 class with 22 students. The result of the questionnaire indicates that the usability of EduBingo is acceptable and there was increase of various affective levels of the students. The data collected by the system, after analysis, implies that, for most students, accuracy and efficiency of solving fraction questions increased. The preliminary result also suggests some directions for further research.