Maryland does not permit you to itemize deductions on the state return if you did not itemize on the federal return (page 11 at https://forms.marylandtaxes.gov/18_forms/Resident_Booklet.pdf). Sorry.
Note, however, that if for some reason you did not take the educator deduction on the federal return (line 23 on Schedule 1 (1040)), you can take the deduction on your state return. Please see code tt on page 11 of the link above.
