About the math, maybe you can use these indices to estimate your learning situation. For starters, do you concentrate on math class absolutely? The first impression of knowledge is vital for math. Besides, do you finish and review your homework timely. Never make the math homework be the last one. I'm sure you will be regretful in a not-so-long time. I know that feeling very much. However, if learning math is something tough and bitter for you, you can reflect on your view about math, and improve your way to learn it. Accept it and overcome it. What's more, do you have the desire to solve the math problem and learning advanced content. At length, make a clear and concise note. There is no need for too many colors or picture. Write down the thing you need  is most significant.

To sum up, know it and change it. Of coures, my advice comes from my personal practice that inevitably is hard to apply to your study directly. Nevertheless, I wish there is something useful for you. (Notice, I'm not someone specialize in math. I am just a college student. So, some better or advanced learning techniques need you to explore) Anyway, good luck to you.

If you want to improve your English level, I suggest that you change the way you learn English. From my point of view, you should treat English as a tool instead of a task. You can use more English instead of just reciting words or doing listening tests.

Alright, my English score in the final university examination was over 130. Reading aloud is essential as it helps you develop a sense of the language. The more you read, the more meanings you will uncover.

Maybe you can guess why I chose this app.

The most important thing is words, accumulating them to learn the language and other skills.

If you need advice on your oral English, listening intensively and following sentence by sentence will improve quickly.

This is just the opinion of an English major student.

Just learn more English words.

Participate in math competitions like IMO (International Mathematical Olympiad) and CMO (Chinese Mathematical Olympiad).

To learn English, I think that you should do more practice. I am in Grade 11 now. From my point of view, English is easy if you practice more.

In my opinion, mastering your textbook is most essential and this is the first process, as well the last.

Why do my comments and advice disappear?