Forty people from 15 countries participated in the study group on minimal competencies at the Third International Congress on Mathematics Education. Despite a great diversity of concerns, participants found the discussions useful. (SD)

Three reasons are given for including measurement estimation in the curriculum. Nine appropriate strategies for the estimation of length and area and five inappropriate strategies were identified during a pilot study that observed 24 students in each of grades five, seven, and first year of college. Instructional implications are noted. (MP)

This article describes the instructional efforts and success of two first grade teachers who cooperated in a year-long subtraction study with a university research team. Performance profiles of students in the experimental and control groups are presented, and implications for teaching are discussed. (PK)