王雷

作品数：22被引量：8H指数：1
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供职机构：首都师范大学更多>>
发文主题：图式归纳数学问题解决LINEFUNCTIONSCOORDINATES更多>>
发文领域：文化科学哲学宗教历史地理文学更多>>
发文期刊：《数学教育学报》《中学生数学（高中版）》更多>>
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高中生数学问题解决图示归纳方式的比较研究被引量：8
《数学教育学报》2010年第1期41-43,共3页王雷 连四清 
类比迁移是进行数学发现和解决数学问题的重要思维方法,是培养数学创造性思维的一个重要途径.学优生更多的是依靠源靶问题的结构性特征,图示归纳的方式是消除性的;学困生往往依赖源靶问题的表面特征,图示归纳的方式是保留性的.数学教学...
关键词：数学问题解决 图式归纳 保留性归纳 消除性归纳 
Logarithmic Function
《中学生数学（高中版）》2009年第4期F0004-F0004,共1页王雷 
Recall that a one-to-one function y= f(x)has an inverse function that is defined (implicitly)by the equation x=f(y),In particular,the exponential function: y=f(x)=a^x,a>0,a≠1,
关键词：高中 数学 对数函数 方程 
Exponential Function
《中学生数学（高中版）》2009年第3期F0004-F0004,共1页王雷 
We give the meaning to expressions of the form a Where the base is a a positive real number and the exponent is r a positive real number. But what is the meaning of a^x,where
关键词：高中 数学 函数 教学习题 
Inverse of a Function f(x)=y
《中学生数学（高中版）》2009年第2期F0004-F0004,共1页王雷 
For a function y=f(x)to have an inverse function,f must be one-to-one.Then for each x in its domian there is exactly one y in its range;furthermore,to each y in the range,there corresponds exactly one x in the domain....
关键词：中等教育 英语教学 英文阅读 阅读理解 《Inverse of a FUNCTION f(x)=y》 
Complex zero;Fundamental Therorem of Algbra
《中学生数学（高中版）》2009年第1期F0004-F0004,共1页王雷 
In this section we will find the complex zero of a polynomial function.Since the set of real numbers is a subset of the set of complex numbers,finding all zeros of a function requires finding all zeros of the form a +...
关键词：高中 英语 学习方法 课外阅读 
complex numbers;quadratic equations with a negtive discriminant
《中学生数学（高中版）》2008年第12期42-42,共1页王雷 
One property of a real number is that its square is nonnegative.For example,there is no rea number x for which x^2=-1.To remedy this situation we introduce a number called the imaginary unit,which we denote by i and w...
关键词：DISCRIMINANT imaginary REMEDY QUADRATIC nonnegativ 
POLYNOMIAL FUNCTIONS
《中学生数学（高中版）》2008年第11期42-42,共1页王雷 
Polynomial functions are among the sim- plest expressions in algebra.They are easy to evaluate:only addition and repeated multipli- cation are required.Because of this,they are often used to approximate other more com...
关键词：ALGEBRA APPROXIMATE repeated POLYNOMIAL nonnegativ 
POWER FUNCTIONS
《中学生数学（高中版）》2008年第10期42-42,共1页王雷 
A power function of degree n is a function of the form f(x)=ax^n.For large n,it appears that the graph coincide with the x-axis near the origin,but it does not;the graph actually touches the x—axis only at the origin.
关键词：coincide actually EXPONENT summarize NONNEGATIVE M 
POWER FUNCTIONS
《中学生数学（高中版）》2008年第9期42-42,共1页王雷 
A power function is a function that is defined by monomial.(单项式) A power function of degree n is a function of the
关键词：首都师范大学 INTEGER 数学科学学院 VERTEX enable BEGIN nonnegat 
EVEN AND ODD FUNCTIONS
《中学生数学（高中版）》2008年第8期42-42,共1页王雷 
A function f is even if and only if when- ever the point(x, y)is on the graph off then point(—x,y)is also on the graph.Algebrai- cally,we define an even function as follows: A function f is even if for every number x...
关键词：首都师范大学 termine NEITHER 数学科学学院 王雷 
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