What is IB Lessons IB lessons is ideal for students attending the International Baccalaureate two-year programme aiming to encourage and motivate students to acquire knowledge and develop skills by offering high quality resources as an excellent preparation for the IB program. In particular, IB Lessons provides mainly notes covering all material and levels of Mathematics (Higher & Standard level, Math studies), worksheets, supportive material and useful links. The resources are regularly updated in order to enrich the database and offer reliable information.