This third volume of a review prepared for the Cockcroft Committee of Inquiry into the Teaching of Mathematics in Schools in Great Britain concerns research with relevance to the mathematics curriculum. The role of history is discussed briefly in the introduction, and has an impact throughout the report. The 13 chapters consider: (1) introduction, (2) early curriculum development and theories, (3) curriculum development in England in the early 20th century, (4) the Consultative Committee and mathematics, (5) later development of curriculum theories, (6) strands of curriculum development, (7) lessons to be learned, (8) evaluation in Britain, (9) evaluation in the United States, (10) the management of curriculum development, (11) centers and networks for curriculum development in mathematics, (12) common problems, and (13) the teacher's role in curriculum development. A bibliography is found at the end of the report. (MNS)