NCTM and the Association of Mathematics Teacher Educators have partnered to produce a new online journal, Mathematics Teacher Educator. The journal will build a professional knowledge base for mathematics educators that stems from, develops and strengthens practitioner knowledge. NCTM will offer members subscriptions to this online-only publication as an add-on to their current NCTM subscriptions. The first issue is free. Appearing biannually in March and September, future issues can be purchased for an additional charge. Read the first issue.