Shubnum Majeed, aged 35, of Pendeford, taught science three days a week at the Holte School in Birmingham, and was entitled to free transport under the Access to Work scheme because she has glaucoma, Wolverhampton Magistrates Court heard.
But she added £5 to the cost of her £25 journey, and later started claiming for taxis five days a week. She also signed claims forms by faking headteacher Patricia Walters's signature. Majeed of Camellia Gardens admitted fraud by false representation.
Mr Marcus Kraehling-Smith, defending, said Majeed, who is now jobless, had been the victim of domestic abuse.
Majeed, who has paid back the money, was given a six-week jail sentence suspended for nine months and ordered to pay £100 costs.