Reading a page can make it feel familiar without showing whether you can explain it independently. Active recall means trying to retrieve an idea before looking at the answer. It helps you notice the difference between recognition and understanding. After studying a short section, close the book and write three questions: What is the main idea? How does it work? Where could I use it? Answer from memory, then compare your explanation with the source. Correct missing details in a different colour. For example, after learning the water cycle, draw the stages and explain what drives each change. Keep questions small enough to answer clearly. If you cannot recall anything, reduce the amount studied and try again. Use the original material to check accuracy; confident answers can still be wrong. Revisit difficult questions on later days rather than repeating only the easy ones. Try it today: study one concept for ten minutes, then spend three minutes explaining it without notes. Record one gap and your corrected explanation. Your goal is an accurate explanation, not a perfect first attempt.