Most students waste hours re-reading notes they already know. This hack stops the autopilot and forces your brain to work harder in less time.
How to do it :
Take your syllabus or a chapter outline and grab three highlighters, RED, YELLOW, GREEN, or just mark with symbols. Then categorise your topics:
- Green (The Got It): You could explain this to a friend right now. Move on, don’t waste time here.
- Yellow (The Shaky): You know the concept, but you’d struggle with the details under pressure. Review these for 15 minutes every day.
- Red (The Roadblock): You’re totally lost. This is where your work starts. Speak to your teacher or form tutor, or ask a peer immediately.
Don’t study harder, study smarter. If your notes are all green, you aren’t studying—you’re just reminiscing.

