Description of curriculum and measurement of student outputs regarding instruction of mathematics in secondary schools / international comparison / partial comparison with first IEA mathematics study ( pupils ) tests of mathematical achievement / time spent compared with other homework / extra help from parents or tutors / use of abacus, calculator, computer ( terminal ) / knowledge, performance and attitudes of parents / significance, ease and preference of math topics / attitudes towards many aspects of mathematics / ( teachers ) questionnaire experience / teaching degree / other school activities / evaluation of test-class on mathematics / time-scheme / use of abacus, calculator, computer ( terminal ) / time spent on various math topics / use of educational appliances / math books / significance, ease and preference of teaching various math topics / attitudes towards various aspects of mathematics / ( schools: ) general aspects and data on mathematics section.