AGTA Board Meet the board members of AGTA. AGTA Patron Tim Costello AO became Patron of the Australian Geography Teachers Association (AGTA) in January 2011. AGTA Members The Australian Geography Teachers Association (AGTA) has seven members being the geography professional associations in each State. Annual Reports The Chair of AGTA submits an annual report to the Annual General Meeting. AGTA’s Constitution AGTA’s Mission