The sciences require both understanding concepts and practice in solving questions. Only watching topic lectures or only solving questions is not enough; you need to run both in balance.
Understand the topic first
When starting a topic, instead of memorizing the formula try to understand why it is that way. In physics pay attention to units and graphs, in chemistry to concepts and mole calculations, and in biology to the order of processes.
Solve questions as soon as you learn
On the day you finish a topic or the next day, take a short test on it. Your mistakes show the places you thought you understood but have not settled.
Small tips by subject
- Physics: solve the question by drawing it, write down what is given and what is asked, then choose the formula.
- Chemistry: make the basic concepts and mole calculations solid, later topics are built on them.
- Biology: work with diagrams and tables and describe processes in order in your own sentences.
Review plan
Briefly reviewing a topic you learned after one day, one week and one month reduces forgetting. At each review, test yourself first, then look at the notes.