课件文稿分析sat math lesson

1、SAT MathLesson 1Rachel Ma马倩 wechat: dreama0406Weibo: buffalo6654 questions (16,18, 20 randomly in 3 sections)Time: 25+25+20=70 minutesQuestion Type: Choice& Filling BlanksMy requirement1. 定期定量刷题，难度依个人而定2. 定期复习错题，务必做到完全理解3. 生词及生词补丁完全彻底背熟4. 我后期发送的新题目可以选择完成Begin NowSAT Math 题型1. 新定义题2. 普通代数题3. 普通几何题4.

2、坐标几何题5. 数论数轴题6. 命题题7. 应用题8. 逻辑推理题9. 排列组合题10. 极值题11. 其他Something You Must Know Before Test1. About the blank2. Calculator: Casio fx90系列(fx991ES Plus)3. 台湾/新加坡香港4. Full Mark:800一、代数 部 分1. 基本运算：Subtract/ minus减 difference-differ by差 multiply, times乘 product积 divide除 divisible可被整除的 divided evenly被整除 div

3、idend被除数 divisor因子，除数 quotient商 remainder余数 factor 因数power乘方 round to/off四舍五入 179.845 to the nearest -tenth digitnatural number自然数positive number正数-negative number负数integer, whole number整数positive whole number正整数-negative whole number负整数consecutive number连续整数real number, rational number实数,有理数-irrati

4、onal(number)composite number合数e.g.4,6,8,9,10,12,14,15prime number质数e.g.2,3,5,7,11,13reciprocal倒数Number line 数轴common divisor公约数(least)common multiple(最小)公倍数(highest)common factor (最大)公因数prime number 质数 素数(prime)factor(质)因子 mon factor公因子nonnegative非负的tens十位units个位，数位mode众数median中数 mean 均值D E: 7+4=11

5、k+n=18DDD16002、有关集合union并集 intersection 交集subset 子集proper subset真子集 solution set解集 Empty set 空集-A3、有关代数式、方程和不等式integer 整数-fraction-decimal 分数，小数In the decimal representation of the fraction 1/10, the tenth digit is_.algebraic term代数项 like terms, similar terms同类项 numerical coefficient数字系数 literal coe

6、fficient字母系数 inequality不等式Range 极差original equation原方程 equivalent equation同解方程,等价方程 linear equation线性方程(e.g.5 x +6=2y) BCould be & Must beCould beEEMust beEEBy:幅度4.有关分数和小数proper fraction真分数 -simple fraction简分数 improper fraction假分数 -mixed number带分数 vulgar fraction, common fraction普通分数 complex fractio

7、n繁分数 numerator分子 denominator分母 (least)common denominator(最小)公分母 infinite decimal无穷小数 recurring decimal循环小数 tenths (unit)十分位 :nearest to/round to tenthCBasic Math Review-Algebra Arithmetic1. 若0n1, 则n2 n; 同理n开平方后变大。2. 指（对）数运算3. 单位换算 1/9 E D ADenominatorNumerator5.基本数学概念arithmetic mean算术平均值weighted ave

8、rage加权平均值 (GPA)geometric mean几何平均数exponent指数，幂base 底数,底边cube立方数，立方体square root平方根cube root立方根digit数字constant常数variable变量inverse function反函数factorization因式分解absolute value绝对值，e.g.-32=326.数列sequencearithmetic progression(sequence)等差数列geometric progression(sequence)等比数列SAT 1基本不考公式BA. a4 and a5B. a5 and

9、 a6C. a6 and a7D. a7 and a8E. a8 and a9C EA数论&数轴题BEDEEquivalentD7. 概率&排列组合The digits 1,2,3 and 4 are to be arranged randomly to make a positive four-digit integer. What is the probability that the digits 1,2, and 3 will be directly next to each other, in that order, from left to right?A. 1/12B. 1/8C. 1/6D. 1/4E. 1/3A:4x3x2x1关于放回与不放回抽取的概率ESAT086Venn Diagram重叠问题C: x+y=15 x+z=12 y+z=11Mean, Median, Mode只有mean(average value)必然会受整体中某一个或几个数变动的