mathematics
Mathematics is mainly about doing problems ~ ~
First of all, you should read a book to understand theorem proving and examples in the book, and then choose the following practical reference books (you can ask the teacher if he has recommended it ~ if not, look for Huanggang's book ~ ~ There should be ~ ~ Huanggang's book used in the past, which feels good)
Mark the places or topics you don't understand in the book separately (it's best to find a notebook to write down these questions), and find out which part of the knowledge may have led to the confusion of the topics first, so that it will be more targeted when you ask someone to help explain them.
Smaller knowledge points or tricks should also be recorded separately (a notebook is enough, the problems are recorded on the front and the knowledge points are recorded on the back), such as the related problems of bisector and vertical line in triangle geometry ~ It is faster and saves time to memorize the idea of solving problems with knowledge points.
After sorting out the questions you have done, you don't have to copy them down separately, but you must make sure that you can find them when you want to find them, and come up with the questions you think are more important, so that you can bring them over when you have time. Practice makes perfect.
Think so much for the time being ~ ~
English
English mainly depends on listening and memorizing ~
You can listen to the tape/CD attached to the text. In fact, I think listening to the text in junior high school English is a better choice. There are many phrases and sentences in the text, which can be used as our examples. We can practice while listening, and it's easy to write it down when listening. It is best to write 1-2 times, which is effective while listening.
You must remember the words well. There should be a separate vocabulary. Before listening to the text of each chapter, memorize the vocabulary list of this chapter first, listen first, correct the pronunciation, and then recite it while writing, instead of memorizing letter by letter, because it is easy to remember wrong, which increases the difficulty. Recite according to pronunciation.
If possible, find some excellent examples of composition and record a few for each genre.
That's about it.
In fact, we may find it difficult when we do it, but as long as we use snacks and concentrate on our studies, we will find that it is not that difficult. Hmm ~ I suggest you make a timetable. You can simply list the content you want to review this summer vacation, divide the time into blocks and divide the content you want to learn into blocks. Then before going to bed every night, see if today's schedule has been completed, and then make a detailed schedule for the next day. Very effective. I used it ~ ~ I can urge myself ~ ~
Also pay attention to the combination of work and rest ~ ~ Don't make yourself too tired. When you can't study, don't study. Play first, and make sure you don't think about anything else when you study ~ ~ Have fun when you play, and concentrate on your study ~ ~
Long-winded sentences, no matter which subject (especially science, history and politics, etc. ), you need to list the knowledge outline, so that it looks clear at a glance and you can see the relationship between various knowledge points, which is very helpful for review.
As for the first two questions, aren't calculators allowed? If it is written, it can only be estimated.
Let's look at the root of a larger number. First of all, we must recite the square of the number within 20 and the n power of the number within 10. Estimate the approximate range, such as 5873, 70 * 70.
The problem of even number three is to sort out and remember some knowledge points and tricks. Even if calculators are allowed, it is better to write down prescriptions with smaller numbers, which is convenient to use. For example, it is enough to record the root number 2= 1.4 14 and the root number 3 = 1.732... 10. If you use it, give more questions.
Nana ~ ~ I hope it helps you ~ I wish you a smooth study ~ ~ _
supplement
You mean like the root number 50 = 5 times the root number 2 ~ ~?
Mainly by factorization, this is the simplest and most complicated method ~ that is, the short division learned in primary school, which can completely turn a number into the product of prime numbers, and then it is easy to find something that can be placed outside the root sign ~ ~
Well ~ some numbers can be divisible regularly ~ ~ The number A, it goes without saying that being divisible by 3 is equivalent to the sum of the numbers in each number being a multiple of 3. Hmm ~ there are still some things I can't remember clearly ~ will you encounter these when you do the exam? Then sum up the rules of this kind of questions when you do it ~ find out if there are any tips available ~ ~ The more you look for yourself, the stronger you remember ~ ~ This kind of questions should not be tested separately, right? I don't remember taking this exam in junior high school ~ if it is a big question, it won't be too difficult for people ~ e...momo~ it's safest to be a short teacher ~ ~