I am a special education teacher. I need to educate the students with special educational needs.
What sort of disabilities do the children you teach have?
All kinds of disabilities. Some need special equipment or teaching procedures
what age group are they in?
Can be any schooling age. Younger children (primary school age) need more care and individually planned arrangement suited to their needs. 
So do you teach in a single school just for special needs students or do you visit various normal schools and assist there when needed?
if the student were only given access to a typical classroom education.
Special education includes learning disabilities (such as dyslexia), communication disorders, emotional and behavioral disorders (such as ADHD), physical disabilities (such as osteogenesis imperfecta, cerebral palsy, muscular dystrophy, spina bifida, and Friedreich's ataxia), and developmental disabilities (such as autism spectrum disorders and intellectual disability) and many other disabilities. Students with these kinds of disabilities are likely to benefit from additional educational services such as different approaches to teaching,
school catering for students who have special educational needs due to learning difficulties, physical disabilities or behavioral problems. Special schools may be specifically designed, staffed and resourced to provide appropriate special education for children with additional needs. Students attending special schools generally do not attend any classes in mainstream schools.
Special schools provide individualized education, addressing specific needs. Student to teacher ratios are kept low, often 6:1 or lower depending upon the needs of the children. Special schools will also have other facilities for children with special needs, such