Does the INCA website provide information on differentiation within teaching groups?
Some information on differentiation across the individual countries of the INCA Archive is available under the ‘Internal school organisation’ subject heading. Select the country of your choice from the “Select country” drop-down menu and ‘Internal school organisation’ under “Select subject/chapter heading”. Then, select the phase of your choice from the page you are linked to, and the sub-heading ‘Organisation of teaching groups’.