We used a grounded theory approach to investigate and describe the learning of middle school students when they carry out mathematical activities (in the classroom or out of it) and explore mathematical objects and relations using mobile phones. We found that a web of conditions and consequences could be related to the students' learning when they…

Classroom management is a topic of enduring concern for teachers, administrators, and the public. It consistently ranks as the first or second most serious educational problem in the eyes of the general public, and beginning teachers consistently rank it as their most pressing concern during their early teaching years. Management problems continue…