1. Moodle.org: open-source community-based tools for learning, http://moodle.org/[Accessed 2016].
2. COURSERA.org: open-source community-based tools for learning, https://www.coursera.org/[Accessed 2016].
3. Khan Academy.org: open-source community-based tools for learning, https://www.khanacademy.org/[Accessed 2016].
4. N. Tamura. Saga Prefecture, Win8 tablet introduced in all public high school. PC Online 2013, http://www.nikkei.com/article/DGXNASFK1001L Q3A710C1000000/[Accessed 2016] (in Japanese).
5. T. Nishmori. Students’ Attitudes in Classes and Teachers’ Strategies: A Survey by the Mathematical Society of Japan. Journal of Higher Education and Lifelong Learning; 1999, 6:1-31.