For me you need to get a feel for SEND in the school first. Digest the SEN register: numbers and types of needs in each class; read through the existing SEN information report and other related policies on their website; spend as much time as you can observing pupils in lessons and looking at provision within the classrooms. Speak to parents & caregivers – make yourself visible. Focus on Quality first teaching strategies, emphasising all teachers are teachers of SEND. Introduce yourself via email or newsletter, emphasising how you value co production.
Next comes support staff deployment and existing programmes of intervention on offer. Introduce yourself to key organisations and key workers that school works with.