![](https://img.haomeiwen.com/i7838622/2c3086d4246a0123.png)
圆柱特征:上下一样粗、光滑的曲面。错因:特征没掌握。认为每个( )都要填。
![](https://img.haomeiwen.com/i7838622/46b25fb904294ece.png)
![](https://img.haomeiwen.com/i7838622/8d2ebf58c8245880.png)
错因:注意力不集中,没听清题目要求。
![](https://img.haomeiwen.com/i7838622/4c805ad7c0f0e228.png)
![](https://img.haomeiwen.com/i7838622/80acee87ff9a347a.png)
![](https://img.haomeiwen.com/i7838622/7d71504685d6fc8b.png)
第三题,错误原因:答题时题目和图形联系不起来,没有分清左和右,盲目答题。漏题。基数序数分不清,注意5个图形和第四个图形的区别。答题前要认真听题,明确从哪边数,第几个还是几个。
![](https://img.haomeiwen.com/i7838622/34f336af4863cc45.png)
![](https://img.haomeiwen.com/i7838622/8c64f3639b12d5b5.png)
![](https://img.haomeiwen.com/i7838622/5a17c521e969b93d.png)
错题分析:右下角的长方体看成了正方体。正方体特征:四四方方、尖尖的角、平平的面大小一样。这是易错点,要强化认识和练习。
![](https://img.haomeiwen.com/i7838622/0d07371da693080e.png)
错题分析:答题前反复解读,个别学生漏圈少圈,对于图形掌握不熟,和所拼图形脱节。
![](https://img.haomeiwen.com/i7838622/7e7ebbe5e97d5a2d.png)
错题分析:对于粗细、高矮直观感觉缺乏,要对照实物让学生说一说。
![](https://img.haomeiwen.com/i7838622/70ae277e7c34bea7.png)
错题分析:1.数错图形,左边第二个正方体没看出来。2.隐藏的图形没看出来,缺乏立体想象。
![](https://img.haomeiwen.com/i7838622/d72dc89523ad5297.png)
![](https://img.haomeiwen.com/i7838622/d9338dfbb1bdf036.png)
错题分析:1题意不清,2找规律填序号,接下去填一填,四个空填序号出错。第四题题目有变化,出错较多。
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