The Monograph Series is published by NCTM as a supplement to the Journal for Research in Mathematics Education (JRME). Each monograph has a single theme related to the learning or teaching of mathematics.
Funded by the National Science Foundation, the purpose of the LOGO Geometry Project was to develop a research-based grades K-6 geometry curriculum that addressed the deficits of the current curriculum. In addition to introducing the project and its rationale, this monograph details the research, results and implications of the study.

Based on extensive research conducted by the authors, Reasoning and Sense Making in the Mathematics Classroom, Grades 3-5, is designed to help classroom teachers understand, monitor, and guide the development of students' reasoning and sense making about core ideas in elementary school mathematics. It describes and illustrates the nature of these skills using classroom vignettes and actual student work in conjunction with instructional tasks and learning progressions to show how reasoning and sense making develop and how instruction can support students in that development.Students who can...

Reasoning and Sense Making in the Mathematics Classroom, Grades 6-8, based on extensive research conducted by the authors, is designed to help classroom teachers understand, monitor, and guide the development of students' reasoning and sense making about core ideas in middle school mathematics. It describes and illustrates the nature of these skills using classroom vignettes and actual student work in conjunction with instructional tasks and learning progressions to show how instruction can support students in their development of these competencies.Students who can make sense of mathematical...