Meet our training team

Our training team is made up of senior members of the TreeHouse School staff, who are all experts in the field of autism education. As active practitioners, they are able to draw on strategies and examples from their own experience.

Hannah ClementsHannah Clements – Senior ABA Consultant

Working in the field of autism education and ABA since 1997, Hannah is experienced in implementing ABA provision for children with autism in mainstream and special schools and at home.

  • BSc (Hons) Psychology
  • Certificate of Professional Practice in Asperger Syndrome
  • Certificate of Professional Practice in Contemporary Issues in Special Education Needs

Principal ABA Consultant, Katy LeeKaty Lee – Principal ABA Consultant

Katy has worked in the field of autism education and ABA for the past 14 years. She is currently completing PhD research within the field of ABA based educational interventions for children and young people with autism.

  • BSc (Hons) Social Psychology and Behavioural Sciences
  • PGDip (Postgraduate Diploma) in Developmental Disabilities
  • MSc Applied Behaviour Analysis
  • BACB (Behaviour Analysis Certification Board) certified

Deputy Headteacher, Becky JonesBecky Jones – Deputy Headteacher

Becky has 14 years’ experience working with children, young people and adults with learning difficulties. Her work has covered various settings, including mainstream school, respite care centres, residential homes for children with autism, holiday camps and family homes.

  • QTS (Qualified Teacher Status)
  • MSc in Psychology of Education
  • Currently studying Postgraduate Diploma in ABA


ABA Consultant, Esther ThomasEsther Thomas – Senior ABA Consultant

Working in the field of autism education and ABA for the past 12 years, Esther has gained extensive experience in designing, implementing and supervising ABA provision for children and young adults with autism.

  • MSc in Applied Behaviour Analysis
  • BSc in Psychology and Sociology
  • PGDip (Postgraduate Diploma) in Developmental Disabilities
  • BCaBA (Board Certified Associate Behaviour Analyst)

Andrew SwartfigureAndrew Swartfigure – Senior ABA Consultant

Andrew has worked as an ABA practitioner for 12 years. Before joining TreeHouse School in 2009, he worked in consultancy roles at other organisations supporting children and young people with autism. He has also overseen mainstream inclusion for children of varying abilities and ages, and designs and implements training models.

  • BA in English
  • Currently completing MSc Applied Behaviour Analysis

Andrew SwartfigureSarah Eyre – Senior Allied Health Professional

Sarah has worked as a Speech and Language Therapist for 9 years with children and adults with autism and severe learning disabilities within social services, health and education.  During this time she has developed numerous services and worked with families and other professionals to support a wide range of social, augmentative and alternative communication strategies.

  • BSc (Hons) Speech Sciences
  • Registered Speech and Language Therapist with HPC and RCSLT