Being a Good Problem Solver（2）

George Polya was a mathematician at Stanford University who was famous for his writing about solving problems. He once wrote:Solving problems is a practical skill like, let us say, swimming. We acquire any practical skill by imitation and practice. Trying to swim, you imitate what other people do with their hands and feet to keep their heads above water, and, finally, you learn to swim by practicing swimming. Trying to solving problem, you have to observe and to imitate what other people do when solving problems and, finally, you learn to do problems by doing them.     

What is the Limit of a Function in Intuitive Way?

In AP Calculus,if you want to learn the course,you will be able to work with the four waysof representation-graphically,numerically,analytically,and verbally.It is important to em-phasize and connect the relationship among these representations as you learn the course success     

学英语（英文）

There are 10questions in total,presenting various different question types.While you attempt to resolve the problems,remember to be creative.During accomplishing these flexible mathematical exercises,you can inspire your mathematical thinking.     

学英语

There are 6 questions in total,presenting various different question types.While you attempt to resolve the problems,remember to be creative.During accomplishing these flexible mathematical exercises,you can inspire your mathematical thinking.     

学英语(英文)

There are 6 questions in total,presenting various different question types.While you attempt to resolve the problems,remember to be creative.During accomplishing these flexible mathe-matical exercises,you can inspire your mathematical thinking.     

学英语(英文)

There are 6 questions in total,presenting various different question types.While you attempt to resolve the problems,remember to be creative.During accomplishing these flexible mathematical exercises,you can inspire your mathematical thinking.     

学英语

There are 6 questions in total, presenting various different question types.While you attempt to resolve the problems , remember to be creative.During accomplishing these flexible mathematical exercises , you can inspire your mathematical thinking.     

学英语(英文)

There are 9questions in total,presenting various different question types.While you attempt to resolve the problems,remember to be creative.During accomplishing these flexible mathematical exercises,you can inspire your mathematical thinking.     

学英语(英文)

There are 6questions in total,presenting various different question types.While you attempt to resolve the problems,remember to be creative.During accomplishing these flexible mathematical exercises,you can inspire your mathematical thinking.     

Being a Good Problem Solver（1）

When solving problems, You need not feel as if you are lost in a maze. Strategies can help you find solutions. What Is an Algorithm?you may have learned to solve any equation of the form x a = b for x. The method was to add -a to each side and then simplify. This method is an example of an algorithm. An algorithm is a sequence of steps that leads to a desired result. Not all algorithms are short. The algorithm called long division can involve many steps.     

学英语(英文)

There are 6 questions in total,presenting various different question types.While you attempt to resolve the problems,remember to be creative.During accomplishing these flexible mathematical exercises,you can inspire your mathematical thinking.1.If A is the set of odd     

学英语

There are 7 questions in total,presenting various different question types.While you attempt to resolve the problems,remember to be creative.During accomplishing these flexible mathematical exercises,you can inspire your mathematical thinking.1.If a-5=0,what is the value of a+5?     

学英语

There are 8 questions in total,presenting various different question types.While you attempt to resolve the problems,remember to be creative.During accomplishing these flexible mathematical exercises,you can inspire your mathematical thinking.1.In an adult evening math class,the average age of the class of men and women is 36.The av-     

Read Carefully (1)——General Advice About Reading

To solve a problem, you must understand it. So, if the problem is written down, you must read it carefully. Here are three things to do to get the necessary information from reading.1. Know the meaning of all words and symbols in the problem.2. Sort the information into what is needed and is not needed.3. Determine if there is enough information to solve the problem.     

Areas of Trapezoids

Pentagon ABCDE is split into three triangles. To find the area of ABCDE, you could addthe area so fthetri angles.This is one reason you learned how to find the area of atriangle.     

Discrete Random Variable

<正>We have learnt something about statistics and probability before.In this section,accord- ing to what you have learnt I’ll introduce you something about random variable.     

学英语(英文)

There are 6 questions in total , presenting various different question types.While you attempt to resolve the problems , remember to be creative.During accomplishing these flexible mathemati-cal exercises , you can inspire your mathematical thinking. 1.Assume that light travels at 300 , 000kilometers per second , and that a light-minute is the distance that light travels in 1minute.     

How to Arrange it?

Problem: If you arrange 24 people in 6 rows and each one must have 5 people,how can you range them?Answer: If you range 24 people in 6 rows, you must have 5 people per row. Isit possible to range so? For there are 6 rows and each one should have 5 people,i.e. 5×6= 30 people !     

单词怎么记

When is it bad luck to have a black cat follow you? (什么时候有一只黑猫跟在你后面是一种坏运气?) 提示:According to superstition,it is bad luck for a black cat to walk across your path.This is particularly true if the cat is big enough to eat you. 按照迷信的说法,有黑猫从你走的路上经过是一个不好的兆头.而当这只猫大到能够吃掉你的时候,这一点尤其正确.     

Geometry and Inductive Reasoning

As a child you learned by experimenting with the natural world about you．You learn ed how to walk,talk,and hold your spoon, all by trial and error．After many tries,you e ventually learned how to ride your bicycle, discovering it was easier to keep your balance