Consider your learning style options. Some education degrees can be earned online. The American College of Education is one institution that provides an online teaching degree. You may, however, prefer classroom-based learning.
Review the "Directory of Approved Programs for the Preparation of Educational Personnel in Illinois Institutes of Higher Education," available from the Illinois State Board of Education. This document details the various universities and colleges in Illinois that provide teacher training programs, and it provides contact information for each. Do a search within the document if you look at it on a computer for "Chicago" to find schools in Chicago, such as the University of Chicago.
Visit the website of each program or call to find more information about how the program is delivered---online or in the classroom. Ensure that it has the type of certification program you are looking for. Alternative certification seekers may have fewer choices of schools to attend in Chicago than more traditional students. The Illinois Board of Education recommends that you know the age and type of student that you want to work with so that advisers at schools you are considering can help you determine which program is right for you.
Enroll in your chosen program, and complete the courses. In most cases, teacher certification candidates will be required to take the Illinois Certification Testing System (ICTS) basic skills test, as well as ICTS subject tests. (More information about exemptions and requirements is available in the "State of Illinois Teacher Certification Requirements," and ICTS test registration information can be found on the Illinois State Board of Education website.) Scores are automatically added to your certification file, so you do not have to send them in with your application for certification.
Send official copies of your transcript, your completed application for certification, a photocopy of your out-of-sate teaching license (if applicable), a letter verifying your experience as a teacher if you have taught in the past (and do not have a current license), and a state-approved program verification form (if you are an out-of-state graduate) to your regional superintendent of schools. In Chicago, this is Ron Huberman. Forms and contact information for regional education offices can be found on the Illinois State Board of Education website.