Title: Children's understanding of angle at the primary/secondary transfer stage
Description: Pupuils' understanding of angle is investigated.  Areas of difficulty and misconceptions are h ighlighted with a view to recommending improvemeents in the presentation of angle in primary school and remedial work to overcome problems in secondary school.  The material opens with a historical and mathematical background and a brief review of research.  Among the findings, the author remcommends the use of angle rulers over conventional proctractors in pupil concept formation and in measurement.