Journal of Mathematics Teacher Education has released a new issue, Volume 13, Number 5 / October 2010. This issue is a special issue on “Mathematics Teacher and Mathematics Teacher Educator Change—Insight Through Theoretical Perspectives”. The issue contains the following articles:

• Observing the process of mathematics teacher change—part 1, by David Reid and Vicki Zack
• Mathematics teacher and mathematics teacher educator change—insight through theoretical perspectives, by Laurinda Brown and Alf Coles
• ‘It’s getting me thinking and I’m an old cynic’: exploring the relational dynamics of mathematics teacher change, by Mark Boylan
• Changing roles and identities in the construction of a community of mathematical inquiry, by Roberta Hunter
• Noticing rapid and profound mathematics teacher change, by Peter Liljedahl
• Mathematics teacher change in a collaborative environment: to what extent and how, by María de la Cinta Muñoz-Catalán, José Carrillo Yáñez and Nuria Climent Rodríguez