The Mathematical Association of New South Wales (MANSW) is a professional association of mathematics educators that is dedicated to improving the quality of mathematics education and learning throughout New South Wales. The association celebrated its centenary in 2010. The association is affiliated with the Australian Association of Mathematics Teachers (AAMT).

MANSW membership covers mathematics educators from pre-school through to tertiary level. The association provides support for teachers of mathematics from Preschool (Early Childhood Teachers), Kindergarten to Year 12 in both government and non-government schools. MANSW encourages participation from tertiary educators in mathematics and mathematics education to share their skills and expertise. The association is a not-for-profit organisation. The activities of the association are managed by a voluntary executive committee.

The association provides:

• professional learning for teachers,

• quality resources for teachers and students,

• opportunities for the exchange of ideas,

• activities to enrich student learning,

• a representative voice for mathematics educators.

The association supports teachers through its website, journals, newsletters, conferences and professional learning courses many of which are held in rural centres across NSW.

MANSW provides an independent platform for the discussion of current issues in mathematics education and the subsequent development of submissions to relevant authorities.