The goal of constructive criticism is to tell them what they did wrong or how to do something better WITHOUT being rude or cruel about how you say it or bring it about. It's meant to help them be or do better at whatever given situation.
hope that helped some :)
The answer is simple currently I am in 9th and scored more than 90 percent by following methods:
1) sleep early and rise early ( it really helps)
2) Eat healthy food ( It keeps out brain active)
3) DO NOT PROCRASTINATE
4)Study on time and take break after every 1 hour
5) Do exercise it improves blood circulation (Helps brain)
6)Dont eat sweet and oily food
Explanation:
no english i speak spanish