If rereading notes feels familiar but you still forget the material later, the problem is probably recognition without enough retrieval. Seeing the same page again can make learning feel stronger than it is because the information is present in front of you.
Close the notes and try to produce the idea from memory. Explain it, answer a question, recreate a diagram, or write the key steps without looking. Then check what was missing, correct it, and return after a delay. The gap between attempts is part of the learning, not wasted time.
Use the Study & Learning Methods Hub for retrieval and spacing. If forgetting persists because the idea was never understood clearly, use the Diagnostics & Recovery Hub.