| nzamt.org.nz | New Zealand Association of Mathematics Teachers (NZAMT) |
| nctm.org | National Council of Teachers of Mathematics |
| nama.org.uk | National Association of Maths Advisers |
| mmsa.org | Maine Mathematics and Science Alliance |
| mctm.org | Minnesota Council of Teachers of Mathematics |
| maa.org | Mathematical Association of America (MAA) |
| learningfirst.org | Every Child Mathematically Proficient |
| sermisy.com | NANAMIC - National Association for Numeracy and Mathematics in Colleges |
| cc.mo.us | Missouri Mathematical Association of Two-Year Colleges (MOMATYC) |
| tripod.com | International Group for the Psychology of Mathematics Education |
United States , Virginia , Winchester