Extended School Year (ESY) services are special education and/or related services provided beyond the usual school year. ESY, Regression, and Responding to Misinformation from School Administrators by Sue Whitney, Wrightslaw Research Editor. ESY is a team decision, not a unilateral decision by the school.
Advanced Credit Program. International Baccalaureate (IB) Courses. International Baccalaureate (IB) courses are advanced courses affiliated with the International Baccalaureate Diploma Program that are taught in high schools to eligible high school students who may receive high school and college credit.
IB curriculums are stricter for teachers. IB has certain required assignments your teacher has to grade, for example oral presentations, as part of the internal assessment. In contrast, AP teachers have a bit more freedom as to how to teach an AP course as long as they are preparing students for the exam.