[Maths-Education] Bibliographical advice

[Peter Gates]

Hello everyone -- is anyone able to help Brigitte Grugeon-Allys and Claire Cazes with the following query please?
Please reply directly to Brigitte
Barbara

-----Original Message-----
From: Brigitte Grugeon [mailto:brigitte.grugeon at orange.fr] 



We are working with a thesis student on the heterogeneity of classes and differenciated teaching in math for students 15 years old.
We are lookiing for bibliographical references.
Can you help us ?
With many thanks.
Best regards.

Brigitte Grugeon-Allys et Claire Cazes