A private school that charges £28,225 a year has been rated "inadequate" in all areas by Ofsted inspectors.
Future First Independent School in Hockley, Birmingham, caters for just 19 pupils, all of whom experienced difficulties in other settings.
The Ofsted report found its approach to reading was "ineffective" and pupils regularly engaged in "unsafe behaviour".
The BBC has approached the school for comment.
All 19 of the pupils have special educational needs or disabilities, yet inspectors found teaching in this area "lacked expertise".
