This list provides a discussion, communication and announcement channel for practitioners providing mathematics and statistics support to students in higher education. This includes staff working in mathematics support centres (or similar), and anyone with an interest in student-centred teaching and learning in mathematics and statistics. Posts to this list must adhere to the JISC acceptable use policy which can be found at https://community.jisc.ac.uk/library/acceptable-use-policy  In particular, since JISC is a publicly funded service, any posts advertising a product or service can only be permitted if it is in furtherance of the aims of the sigma Network https://www.sigma-network.ac.uk. Any posts advertising a commercial product or service should be infrequent and clearly state the costs involved, and remain at the discretion of the sigma Network Steering Group. If you are unsure whether your post will meet these guidelines please contact the list owner at SIGMA-NETWORK-request@jiscmail.ac.uk