There is very little in the way of dedicated subject-specific continuing professional development (CPD) provision for science teachers in special schools, nor for those who work in the mainstream, but have children with special educational needs in their classes. For the last two years, the Centre for Science Education (CSE) has been working with teachers and teaching assistants (TAs) with expertise in special educational needs on an exciting CPD project called "Science for All." "Science for All" considers the project teachers and TAs as the experts in special educational needs. With a very "bottom up" approach, it allows classroom and pupil experience to shape and inform the project outputs. The teachers' and TAs' experience of working with challenging learners is central to the project's success and to the resources that it has created. The project outputs of "Science for All" aim to help pupils described as having complex needs, rather than physical disabilities, by sharing classroom strategies that best motivate these learners. The "Science for All" resources outline practical techniques and strategies that a teacher can use to help motivate and support pupil engagement in science lessons, and aim to help develop the pupils' functional skills.