A
If you’re looking for joyful, open-ended experiences with math that develop curiosity and pattern-finding for your kids, the following website activities may be helpful.
Which One Doesn't Belong by Mary Bourassa is inspired by Christopher Danielson” book of the same name. The concept is simple： there are four numbers, shapes, or graphs, and you have to find a reason each one is the odd （不合规律的）one out. If the numbers are 9, 16. 25, and 43, you could say 9 is the odd one out because it has only one digit« 16 is the odd one out because it’s an even number, 25 is the odd one out because it does not end in a multiple of three, or 43 is the odd one out because it is not a square.
●MathArtChallenge by Annie Perk ins is an open-ended way to explore math by creating patterns. Perkins is sharing daily prompt （提示词to inspire mathematical play everything from geometry constructions to toilet paper roll polyhedral（多面体）and other participants are sharing their creations on social media.
●Bookzoom pa by Paula Krieg, has a wealth of paper-folding activities that engage with mathematics. Krieg recently mailed me a beautiful example of one of the more challenging crafts she's written about on her blog。. You might want to try some of her simpler crafts first, like pentagons and stars.
●Big Lock-Down Math-Off by Aperiodical is a version of the summer math communication competition they have run for the past couple of years. Participants submit write-ups of favorite bits of math, and readers can vote on their favorites. I believe submissions are still open if you want to take part in it.
1. How does the author explain the way Which One Doesn't Belong works?
A. By giving an example. B. By providing statistics.
C. By making comparisons. D. By introducing research findings.
2. What can one learn following Annie Perkins?
A. To write articles. B. To create patterns.
C. To do paper folding. D. To find the odd one out.
3. In which activity can one participate in a competition?
A. Which One Doesn't Belong. B. MathArtChallenge,
C. Book zoom pa
D. Big Lock-Down Math-Off.
【答案】1. A 2. B 3. D
【解析】
【分析】
本文是一篇应用文。主要介绍几个网站活动可以帮助寻找快乐的、开放式的数学体验，以培养孩子的好奇心和模式发现。
【1题详解】
细节理解题。根据文章第二段中“If the numbers are 9，16，25， and 43, you could say 9 is the odd one out because it has only one digit, 16 is the odd one out because it's an even number, 25 is the odd one out because it does not end in a multiple of three, or 43 is the odd one out because it is not a square.” 如果数字是 9，16，25 和 43，你可以说 9 是奇特的数，因为它只有一个数字，16 是奇特的数，因为它是偶数，25 是奇特的数，因为它不以3的倍数结束，或者 43 是奇特的数，因为它不是平凡，由此可以看出这是一个例子，因此作者是举例来解释Which One Doesn't Belong是怎样工作的，故选A。
【2题详解】
细节理解题。根据文章第三段第一句中“MathArtChallenge by Annie Perkins is an open-ended way to explore math by creating patterns.” 安妮·帕金斯的《数学挑战》是一种通过创造模板来探索数学的开放式方法。跟随Annie Perkins，可以学到创造模板，故选B。
【3题详解】
细节理解题。根据文章第五段第一句“Big Lock-Down Math-Off by Aperiodical is a version of the summer math communication competition they have run for the past couple of years.” Aperiodical的Big Lock-Down Math-Off是他们过去几年来参加的夏季数学交流竞赛的一个版本。因此可以在Big Lock-Down Math-Off活动中参加竞赛，故选D。
【点睛】应用文多是细节理解题。一般定位关键词适用于解答细节理解题。通过定位关键词解题，考生在阅读题干时，把题干中有标记意义的词或词组划记出来，或者选项中的关键词，然后用这个词回到原文当中定位。如小题1题干中的Which One Doesn't Belong，再如小题2题干中的Annie Perkins，可以帮助快速找出答案。
