This paper reports on an investigation into management in Mathematics classrooms. Classroom management is contextualised in terms of the managerial actions required to manage classrooms effectively and the extent to which effective classroom management responds to contextual challenges. Relevant literature is reviewed, and theoretical perspectives with investigative value for classroom management are examined. Data was collected using individual semi-structured interviews with four Mathematics department heads and with five teachers per school, for the four focus group interviews. The interviews were audio-taped, transcribed and the data analysed using a process of abductive data analysis as suggested by McMillan and Schumacher (2010; "Research in education: Evidence-based inquiry," 4th ed., Pearson Education). The participants in this study supported the use of different overlapping management styles. Teachers apply these styles by introducing useful and suitable management actions in their classroom practice. It was found that organising group work and motivating learners are actions that encompass the majority of functions related to the management of teaching and learning in Mathematics classrooms. Contextual influences like teachers' professional competencies, curriculum implementation, the maintenance of facilities and the availability of resources and learning materials were highlighted as factors that both support and constrain the effectiveness of classroom management.