The Math Projects Journal (MPJ) is "dedicated to improving mathematics education by empowering teachers with lessons and ideas" based on "four and a half" principles which are described on the website. This website offers a selection of free lesson plans and articles on pre-algebra, algebra, and geometry. A 300-page spiral bound book of lessons and articles published in the first five years of MPJ...

The Show-Me Center is a partnership of four NSF-sponsored middle grades mathematics curriculum development Satellite Centers (University of Wisconsin, Michigan State University, University of Montana, and the Educational Development Center). The group's website provides "information and resources needed to support selection and implementation of standards-based middle grades mathematics...

Over the last decade standards-based teaching has become the single greatest push in education. The question for teachers often lies with wondering how and where to find resources that match the standards. The K-12 Mathematics Curriculum Center, funded by the National Science Foundation, seeks to do just that by offering to "inform and assist schools and districts as they select and implement...