An Agency is usually the school district, and a School is usually the individual schools within that district.
State is usually the main state agency that deals with elementary and secondary education.
Then follow the instructions. Use the dropdown menus to pick the school year and state you wish to search. Type in other information such as Macomb for city location to get Macomb school or district information. Then hit Enter to start your search. Hitting the D in the menu bar will display the first record of your search under the first category of information.