Set: Research Information for Teachers, is published twice a year by the New Zealand Council for Educational Research and the Australian Council for Educational Research. This document draws together 16 articles on mathematics from previous issues grouped into three categories: general, primary, and secondary. The titles are: (1) "Contents and Introduction," (2) "Twenty-nine Tough Questions," (3) "Unlocking the Great Secret," (4) "Evaluating Learning in Mathematics," (5) "Understanding Children's Mathematics: Some Assessment Tools," (6) "What Mathematicians Do," (7) "Number Skills in Junior Classrooms," (8) "Small Children Solve Big Problems," (9) "There are Numbers Behind the Piano," (10) "Being Both Right and Wrong," (11) "Beginning to Learn Fractions," (12) "Helping One Another Learn," (13) "A Child's Perspective of Algebra," (14) "What are the Benefits of Single-Sex Maths Classes?" (15) "Mathematical Needs of School Leavers," and (16) "How I Failed." (MKR)