OVER 100 teachers recently attended a seminar on the teaching of economics in secondary schools. Addressing the seminar, which was held by Longman Asia at the YMCA, was well-known economics writer Li Wai-shing. Mr Li spoke on the 'Methodology of Economics'. Mr Li, who has over 16 years' experience as a teacher and is best known for the popular New Introductory Economics series, addressed the teachers on effective ways to teach the A-level Economics syllabus. Besides writing, Mr Li has been involved in many aspects of HKCEE and A-level Economics - from syllabus revision to marking. In 1988, Mr Li received an Outstanding Teacher Award from the University of Chicago. Mr Li is working on a new course book for A-level students and teachers - the Longman Economic Science. The series will offer the first A-level Economics course books to be published in full colour. The series is exam-oriented, with a lot of self-assessment questions to enhance understanding of the various areas of economics. Mr Li is also writing two supplementary books, Tackling HKAL Economics Questions, Volumes 1 and 2 , for students. The books will show students how to apply their knowledge of economics to solving problems and preparing a presentation. The two 'Economics' series will provide more coursebooks for students taking A-level Economics in 1996. For more information, call Martin Chan on 2397-7782.