Let's talk about the preparation strategy of GRE mathematics in detail.
Now it is not as easy to get full marks in mathematics as it used to be. Globally, only 3-4% of students can get math 170. Of course, the proportion of domestic students will be slightly higher, but there is still a certain distance from the state of "casually 170", so we still can't take it lightly.
First of all, set a goal for yourself. The mathematics of science and engineering should be as high as 170, even if the goal is not the top ranked school, it should not be lower than 168, and the liberal arts students are generally around 165.
In the face of more and more GRE mathematics with routines and pits, how should we deal with it?
Today, I will sort it out from the following four sections.
First, master the knowledge system of the system.
First of all, students should grasp, what is the GRE math test?
1, all knowledge points in primary school
2. Most knowledge points in junior high school: proof questions and step questions are not tested.
3. Several knowledge points in high school
What will you get: permutation and combination probability, set, normal distribution (shallow), sequence basis, etc.
Fail: trigonometric function, function property, elliptic hyperbola ...
If the GRE mathematics knowledge system is weak, what ways and materials can supplement the study?
Official guide OG (basic knowledge):
These questions are relatively old, at least three years old. The idea of the topic is a little different from the current exam, and the difficulty is relatively low. Generally speaking, if you master OG, you can get 160, but 160+ is not enough.
? GRE perfect mathematics collection:
The perfect score book contains the explanation of all mathematical knowledge points and the summary of high-quality mathematical problems. Added extended knowledge points of mathematics that are not involved in OG (such as permutation and combination method).
Suitable for students with poor foundation and lack of knowledge points. Generally, it is no problem to master the knowledge points contained in the perfect score book.
Second, a lot of targeted training (brushing questions)
1, what can I use to brush the questions?
Less difficult than the actual exam: OG, PP2, PPO.
The difficulty is equal to the actual test: the mathematical collection and memory of Machine Classics 360
The difficulty is slightly greater than the actual exam: "Math Problem 170"
Remember to leave a message for students who need the classics of mathematical machines.
2. How to brush the questions?
Learn to bully: directly do "math problem 170" and "math memory 360"
Non-overbearing type: refer to the difficulty of the first point from small to large and practice step by step.
3. To what extent (key) is the training.
A, ensure that the analysis of each problem can be understood.
B, the wrong book (screenshot or handwriting)
C. Make sure you can do the right thing by changing a number.
Third, repeated analysis of wrong questions
1, how to analyze the wrong question?
First, create a new document with misplaced questions (screenshot, handwritten copy, page number, title number).
Write down what you can't do, what you accidentally do wrong, and what you do wrong, and there will be analysis ... In short, whatever the wrong method is, as long as it is wrong, it will be recorded in your wrong book. Because it has the ability to make you wrong once and the ability to make you wrong again.
2. Is the wrong question a paper version or an electronic version?
Wei Ge recommends the electronic version here-because most of the materials on the market are PDF versions, direct screenshots are more efficient. At the same time, you can leave some positions under the wrong questions and write analysis and reflection.
Fourth, centralized simulation before the exam
What are the questions in the model test?
PP2- Free (not as difficult as the actual exam)
PPO- charge (about equal to the actual exam, because the Chinese difficulty of PPO is similar to the actual exam, and the math difficulty is less than the actual exam. )
The main purpose of simulation is to feel the biological clock during the exam.
The examination time is from about 9: 00 am to about 1.40 pm, with only 10 minute for lunch break.
Common routines of pit questions
Everyone can clearly feel that the math problems are very flexible and the routines are full, which also makes many math experts stumble. Let me give you a few typical pit problems:
Pit 1:
AB people are divided into two groups, group A has 20 boys and 40 girls, group B has at least 7 boys and some girls. The probability that one person in each group is male is less than or equal to115. Ask which of the following statements must be true (indefinite option)
There are more than 34 people in group a.b.
There are more than 32 girls in group B.
There are less than 34 girls in group C.B.
Pit problem 2:
There are two boys and five girls. Then four people were randomly selected. There must be at least 1 male 1 female. There are several ways to choose a general manager.
Answer: pit question 1 choose a, and there are 30 kinds of pit questions 2.
Did you do the above two questions correctly? Let me show you a few GRE math routines:
Pit problem 3:
Among the 200 workers, 10% men smoke and 49% women smoke.
Quantity a: the total number of smoking workers
Quantity B:59
A. quantity a is larger.
B. the quantity b is larger.
C. these two quantities are equal.
D. this relationship cannot be determined from the information given.
Analysis:
Many students have read this question. Quite simply, the proportion does not represent the specific quantity, so choose D directly. But have you considered how these people feel? 49% must be an integer. Is there still 0.5 people?
So the answer to this question can only be C, because 49% of women mean that there are only 100 women, so there are also 100 men, so there are 59 smokers.
In addition, this question cannot have 200 women, because 10% means that men must be greater than or equal to 10.
Pit question 4:
15% of the class is over 16 years old. How many students are there in the class at least?
Analysis:
At first glance, how can there be an answer to this question? But with the experience of the last question, do you find that this question is actually a type?
That is to say, considering that people must be integers, and 15%=3/20, there are at least 20 people who can satisfy integers.
Pit question 5:
Quantity A:x
Quantity B:y
A. quantity a is larger.
B. the quantity b is larger.
C. these two quantities are equal.
D. this relationship cannot be determined from the information given.
It's simple! Y = 75 and X = 105, so the answer is a.
But does this question tell you that these two straight lines are parallel? So ... the answer is D.
? Knowledge point display (part)
1, double overlap
In a company, 70% employees are lawyers, 55% employees are women, and 60% women are lawyers. Ask the ratio of male lawyers to the total number of people in the company.
2. Clever application of Mississippi law to solve problems
Example: A password consists of five symbols, including 1 @, 2 $ and 2 #. How many different passwords can * * * make up?
5! /2! /2!
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So much for today's answer. If you have any questions, we can discuss them together. I wish you an early GRE score!