Here is the link for the Georgia Milestones 3rd grade review study guides. The link contain practice questions and learning activities for the students to look at in order to prepare for the milestones test.
http://www.gadoe.org/Curriculum-Instruction-and-Assessment/Assessment/Pages/EOG-Study-Resource-Guides.aspx
http://www.gadoe.org/Curriculum-Instruction-and-Assessment/Assessment/Pages/EOG-Study-Resource-Guides.aspx