Word problems

佐治去年收集了365枚硬币,而今年比去年多收集了256枚硬币。这两年他一共收集了多少枚硬币呢?比尔、凯特和何利向他们的邻居募捐。比尔募集了13.78美元,何利募集了16.85美元,而凯特募集了12.34美元。a.何利比凯特多募集了多少美元?b.何利与比尔一共募集到多少美元?1.George collected365 coins last year. This year he has collected an additional 256 different coins. About how many coins has he collected altogether in these two years?2.Bill、Kate and Holly collected contributions(捐款)from theirneighbors.Bill collected$13.78,Holly collected$16.85,and Kate collected$12.34.a.How much more did Holly col-lect than Bill?______b.How much did Hol...     

Word problems and mathematical reasoning-A study of children''s mastery of reference and meaning in textual realities

The mastery of word problems is seen as an important test of mathematical ability. When solving such problems, students supposedly go beyond rote learning and mechanical exercises to apply their knowledge to realistic problem situations in which mathematical reasoning becomes an important instrument for making concrete judgements. Research shows that performance on word problems is often surprisingly poor. Non-realistic, and even logically inconsistent, answers to word problems are often accepted by students, and there are many signs that students seldom make so-called realistic considerations when applying their mathematical knowledge to real world events. The study reported is a follow-up of the work by Verschaffel, De Corte, and Lasure (1994) in which the difficulties students have in making realistic considerations were clearly illustrated. In the present study, students (10–12 years of age) worked in groups, and the tasks given (estimating distances) were introduced as part of a general discussion of how to calculate distances to school. Results show that the participants were clearly able to entertain different assumptions regarding how to measure distances, and they make distinctions between alternative options when discussing, for instance, the distance between two villages as indicated on a road sign on the one hand, and when talking about the shortest possible distance on the other. It is argued that the problem of what constitutes a realistic consideration when solving word problems is far from simple but has to be understood in context.     

词语游戏……

“Madam，I’m　Adam．”这是亚当在伊甸园里碰上夏娃说的第一句话。这句话的玄机是，正过来倒过去都一样。这样的句式在英文里叫“Palindrome”（回文），即“正读、反读都相同的一个单词、词组、诗节或句子”。中文里最著名的回文诗当属苏蕙的《璇玑图》。英文里，简单的回文词有“Noon”，“Dad”，“Mom”，“Level”，“Bob”，“Eve”，“Otto”等；复杂的有“Wasitacaroracatlsaw”（我看到的是辆车还是只猫），“Nolemonsnomelon”（没有柠檬就没有甜瓜），等等。以下是一些回文词语游戏，看看你能不能根据提示，猜出对应的单词。     

over的几种用法

重新排列下列各组字母,组成一个真正的英语单词。     

Cross Word

1．前一段TVB热播的由冀宗泽、徐子珊、胡定欣、阵敏之、黄留贸、江姜仪等主演的时装商战电视剧 2．比喻衷心的劝告,尖锐的批评,听起来觉得不舒服,但对改正缺点错误很有好处 3．北宋著名的思想家、政治家、文学家、改革家,名列“唐宋八大家”。《伤仲永》便是他的代表作品之一 4．由西蒙·韦斯特执导,杰森·斯坦森主演的动作片。     

同源词与同义词辨析

“同源词”与“同义词”是词源学的两个基本概念,本文通过对一些例子的分析,辨析了这两个概念。     

Word Search

Try to find these Thanks- giving words in the puzzle.请在字母表中找出下列所有关于感恩节的单词,并将单词与相应的图连线。     

单词找一找

小朋友,你知道自己爸爸妈妈的职业（occupation）是什么吗？你长大以后想干什么呢？下面的字母表里藏着很多职业的单词,请你把它们找出来吧！     

单词找一找

圣诞节快到了,我们听着圣诞歌,等待着圣诞老人来派礼物。小朋友,你最希望收到的圣诞礼物是什么呢？下面的字母表里藏着很多跟圣诞节有关的单词,请你把它们找出来吧！     

单词找一找

感恩节既是庆祝丰收的节日,也是表达感恩的节日。小朋友,想想有哪些人曾经对你有恩,赶紧向他们表达一下你的感激之情吧！下面的字母表里藏着很多跟感恩节有关的单词,请你把它们找出来吧！     

单词找一找

同学们,新学期又开始了,你们的学习文具（stationery）都收拾好了吗？一样都不能少哦！下面的字母表里藏着很多学习文具的单词,请你们把它们找出来吧！