The Centre for Mathematics Education at the Open University is to run eight courses for secondary teachers on learning and teaching mathematics using a Graphics Calculator. Entitled "Too many buttons?", the first three 24-hour residential courses will be held at: Easthampstead Park, Berkshire, October 20-21, Dyffryn Conference Centre, Cardiff, November 10-11, and Epping Forte Posthouse, Essex, December 1-2. Other courses will be held in Northamptonshire and Wolverhampton. Fee: Pounds 160 (includes a Graphics Calculator). Details: Tracy Johns, 01908 653550.