www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

USEUROPEAFRICAASIA 中文雙語Fran?ais
China
Home / China / Innovation

Moon rises when textbook least expects it

By China Daily | China Daily | Updated: 2017-08-08 08:34

An astronomer in Shanghai has voiced his concerns over an exercise in a science textbook that requires primary school students to document their observations of the moon.

In Summer Vacation Life, published by Shanghai Educational Publishing House, first-grade students are required to observe the shape of the moon between 7 pm and 9 pm for 28 consecutive nights.

But Tang Haiming, secretary-general of the Shanghai Astronomical Society, said the task is misleading because the moon rises at a different time every day.

Moon rises when textbook least expects it

For example, people living in Shanghai were able to see the moon rise at 9:04 pm on July 12 and set at 7:32 am the next day. On July 13, it rose at 9:42 pm and set at 8:32 am the next morning.

Students were also asked to leave the space empty if rain or clouds prevented them from seeing the moon. They were required to guess the shape of the moon later based on their observations during the 28 nights.

Tang said this may mislead the students, who might think the reason they could not find the moon between 7 pm and 9 pm was bad weather, instead of the fact that the moon actually rose after 9 pm.

"It's a shame that the editors do not have enough knowledge about science, and that such a mistake was made in a science book," said Tang, adding that the mistake was due to the education system that doesn't focus on detailed scientific knowledge.

The publishing house could not be reached for comment by publication time.

Tang said that a representative from the publishing house has contacted him, telling him that it was organizing a group of experts to re-examine all science-related subjects in the book, and was studying how to improve students' interest in science.

Some parents in Shanghai said even many adults would not have noticed the moon mistake.

"I helped my child observe the moon every day, but I didn't realize that the moon can't be seen on some nights during the specific time slot because it rose at a different time," said Wang Shanshan, a mother of a first-grade girl in the city's Xuhui district. "I was ashamed because I thought it was due to the weather conditions."

Wang suggested that the school organize a one-day field trip to an observatory in Shanghai to increase students' interest in astronomy.

He Qi contributed to this story.

Editor's picks
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
 
主站蜘蛛池模板: 亚洲免费成人在线 | 国产精品18久久久久久vr | 成人国产在线看不卡 | 国产成人久久精品一区二区三区 | 精品欧美一区视频在线观看 | 黄色综合网 | 国内精品91久久久久 | 久久99这里只有精品国产 | 欧美午夜精品一区二区三区 | 岛国大片在线播放免费 | 亚洲欧美自拍偷拍 | 欧美一区二区三区视频在线观看 | 黄性色 | 手机在线免费看毛片 | 91久久视频| 欧美精品午夜久久久伊人 | 亚洲国产精品91 | 俄罗斯18videosex性欧美成人 | 久久亚洲综合中文字幕 | 国产男女猛烈无遮档免费视频网站 | 国产伦理久久精品久久久久 | 色综合久久久久久888 | 国产3级在线观看 | 成人欧美在线视频 | 97精品国产91久久久久久久 | 99热久久国产综合精品久久国产 | 伊人久久免费 | 欧美一区二区三区日韩免费播 | avtt加勒比手机版天堂网 | 成人午夜影院在线观看 | 日本一区二区三区四区无限 | 中文字幕亚洲一区二区三区 | 杨幂国产精品福利在线观看 | 一级大黄美女免费播放 | 亚洲男人的天堂久久香蕉 | 久久草在线观看 | 男人天堂手机在线 | 久草视频福利资源站 | 视频精品一区二区三区 | 亚洲加勒比久久88色综合一区 | 日韩国产欧美成人一区二区影院 |