I think you're out of luck there - as far as I know all public schools in Turkey teach only in Turkish. Some may teach English as a second language subject but the rest of the teaching would all be in Turkish. If wanting to send your child to an English-speaking school I think your only option would be one of Turkey's international schools.
What nationality are you and your child? Are you moving to Turkey for work? If so, you might be able to negotiate an allowance for international school fees as part of your relocation package. For more info on international schools, see Education and Schools in Turkey.