by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(122) / 评论(0) 分类 数学英语

by Jason Marshall Lets kick things off with a bit of a strange question: If you were asked to walk up two stairs and then immediately back down three, how would you describe the total number of stairs youd climbed relative to where you began? Do any

发表于:2018-12-07 / 阅读(70) / 评论(0) 分类 数学英语

by Jason Marshall In the last episode, we talked about exactly what decimal points and decimal numbers are, and why they are so convenient to use. In the next few weeks were going to continue talking about decimals and their place in the world of mat

发表于:2018-12-07 / 阅读(113) / 评论(0) 分类 数学英语

图片1 图片2 图片3 by Jason Marshall Weve now talked about several different useful ways for looking at and understanding a group of numbers. The mean, median, and mode are great for determining the average value, and last time we learned that t

发表于:2018-12-07 / 阅读(78) / 评论(0) 分类 数学英语

图片 by Jason Marshall Its not often someone suggests that knowing some math could make you the life of the party, but thats exactly what Im going to do. Yes, a properly timed delivery of a few fun facts about the famed Fibonacci sequence just migh

发表于:2018-12-07 / 阅读(123) / 评论(0) 分类 数学英语

数学能解释历史么?让-巴蒂斯特米歇尔在这篇演讲中告诉我们:不仅能,事实上数学可以用来解释很多历史规律。从语言的变迁到战争的伤亡,他向我们展示了数字化存储的历史记录正在逐

发表于:2018-12-09 / 阅读(238) / 评论(0) 分类 TED公开课:百字不如一数字

准备好坐在椅子上扭一扭吗?鼓手克莱顿?卡梅隆从节奏来讲解不同类型的音乐,从节奏蓝调到拉丁再到游行。看完这个演讲,你就知道嘻哈和爵士并不比数学更难,它们离不开数学。

发表于:2018-12-09 / 阅读(184) / 评论(0) 分类 TED公开课:百字不如一数字

Its time to go again to the A Moment of Science mailbag. A listener writes: 又到了科学一刻听众的来信时间。一位听众写道: Dear A Moment of Science, 亲爱的《科学一刻》, Im not a math person. In fact, anytime I have to d

发表于:2018-12-28 / 阅读(110) / 评论(0) 分类 初学者听力文摘精选

Students who listened to different chords rated as more pleasing the ones that westerners think of as harmonious, the individual notes of which have definite mathematical relationships 【英文文本】 Why do some chords sound sweet but others make

发表于:2019-01-02 / 阅读(109) / 评论(0) 分类 60秒科学

by Jason Marshall Weve spent the last few articles building our numerical vocabulary from the ground up. Today, were going to talk about something that sounds hard, but is actually pretty easy...and very useful too: the commutative property of additi

发表于:2019-01-02 / 阅读(187) / 评论(0) 分类 数学英语

by Jason Marshall In the last article, we talked about averages and one specific way statistics can help answer questions without letting emotions interfere. But the type of average value we talked about is just one of manyuseful meanings assigned to

发表于:2019-01-02 / 阅读(169) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall In the last article, we discovered that integers alone are not sufficient to fully describe the world around uswe need the fractions existing between the integers too. (In learning that, we also learned that fraction

发表于:2019-01-02 / 阅读(169) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall A few articles ago, I asked if you ever found yourself at restaurants fumbling to figure out how much to tip; I guessed that you might occasionally resort to seeking advice from your smart phone; and I told you that

发表于:2019-01-02 / 阅读(185) / 评论(0) 分类 数学英语

by Jason Marshall In the last article, we began talking about mathematical sequencesin particular, a type of sequence known as an arithmetic sequence. Today, were going to turn our attention to another type of sequence called a geometric sequence. In

发表于:2019-01-02 / 阅读(151) / 评论(0) 分类 数学英语

by Jason Marshall In the previous article we talked about using the number line to help you keep your signs straight when adding positive and negative integers. In this article were taking things one step furthernot just adding positive and negative

发表于:2019-01-02 / 阅读(161) / 评论(0) 分类 数学英语

by Jason Marshall In the last two articles weve learned how to calculate two types of average values: the mean and the median. Today, were going to continue where we left off and talk about how median averaging can be useful in everyday, real life si

发表于:2019-01-02 / 阅读(194) / 评论(0) 分类 数学英语

by Jason Marshall This is our very first Math Dude article, and in honor of that were going all the way back to basics to answer some fundamental questions about math that should help you evaluate the status of your relationship with numbers. But let

发表于:2019-01-02 / 阅读(141) / 评论(0) 分类 数学英语

GRE数学常见表达式汇总 1.is equal to; is the same as = the result is; yields; gives 2.the sum of x and y; the total of x and y; x added to y; x increased by y; x+y x more then y; x greater than y 3.x minus y; x less y; the difference of x and

发表于:2019-01-03 / 阅读(92) / 评论(0) 分类 GRE英语

物理学家Geoffrey West发现,简单的数学定律治理着城市的各种属性--财富,犯罪率,步行速度以及城市的其它方方面面都可由一个数字推算出来:即城市的人口。他通过展示其中的原理,阐述

发表于:2019-01-05 / 阅读(157) / 评论(0) 分类 TED公开课:百字不如一数字

数学常用短语与从句 Phrases or clauses frequently used in mathematics 常见的涉及运算的短语或句子 1. Differentiate both sides of the equation and we get... Integrate both sides of the equation and we get... 2. Differentiating both sides of the equatio

发表于:2019-02-07 / 阅读(110) / 评论(0) 分类 英文语法词汇