ISBE Educator Licensure staff will process priority applications within two weeks (10 working days). Approval Forms, Dual Credit Forms, General Licensure Forms.An applicant applying for an Illinois Principal credential shall use this form to verify teaching experience. In this article, we discuss how to write a conformational letter, look at sample templates for formal and informal confirmation letters and share some tips. The cooperating teacher's description of the class and long range plans;. The student teacher's role in the cooperating teachers classroom;. Here are sample letters and forms often used to communicate with the school about the needs of a student. Confirmation Form for Level 1: Early Experiences. Thank you for arranging a placement for {Add the student's names} to complete observations in your school. This page includes all DCFS forms available online.