105 ILCS 5/27-3
American patriotism and the principles of representative government, as enunciated in the American Declaration of Independence, the Constitution of the United States of America and the Constitution of the State of Illinois, and the proper use and display of the American flag, shall be taught in all public schools and other educational institutions supported or maintained in whole or in part by public funds. No student shall receive a certificate of graduation without passing a satisfactory examination upon such subjects, which may be administered remotely.
Instruction shall be given in all such schools and institutions in the method of voting at elections by means of the Australian Ballot system and the method of the counting of votes for candidates.
The Pledge of Allegiance shall be recited each school day by pupils in elementary and secondary educational institutions supported or maintained in whole or in part by public funds.
105 ILCS 5/27-3