The important thing about learning is to make a time distance between classes and learning. Maybe Iana should not do her homework as soon as she can after class. There are also several practical things, such as a walk before learning, it has have been proven that exercise can increase memory and brain power. Then, the loud repetition of what is being read, the taking of good notes during the class, rewriting notes, first focus on harder things, make breaks during learning, etc. If, besides everything, she can not understand what she needs to learn, she would ask her instuctor questions about it.
