Create an inclusive culture
Make achievement for all pupils your goal and include this in your school's vision statement. Make sure the whole senior leadership team (SLT) is on board with the aim to embed this in your whole-school culture, at all levels.
As an SLT, whenever you make a decision about procedure or policy, consider the impact this would have on the attainment of pupils with special educational needs (SEN).
To find out more about developing a vision for your school check out this article from The Key.
Teachers should have high expectations of pupils with SEN, led by the school vision statement and whole-school culture (see above).
Plan lessons: make sure the activities are suitable for the pupil or that a suitable differentiated activity