求翻译：如，在一次听课中，有位教师在教学单词 Chinese book, English book, math book, school bag, notebook的拼写时，让学生用身体的运动写出单词的字母，有的学生显得很兴奋，而有的学生纯粹是在那里乱扭，甚至连字母都不拼读，只是觉得好玩，好笑。这样的活动看似热闹，但不能起到真正强化单词拼写的作用。像这样不能指向正确的教学目标的活动我们不能认为它是有效教学。是什么意思？

For example, in the first lectures, there are teachers in the teaching of the word Chinese book, English book, math book, school bag, notebook spelling, the students write the word with the movement of the body of the letter, some students seemed very excited, and Some students simply twisted mess i

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Like, in one time attends a lecture, has a teacher when teaching word Chinese book, English book, math book, school bag, the notebook spelling, lets the student write the word with the bodily movement the letter, some students appear very excitedly, but some students are purely randomly turn in ther

For example, in a class, teachers in teaching Word Chinese book, English book, math book, school bag, notebook of the spelling, student movements of the body to write letters of a Word, some of them looked very excited, and some of them are purely there twist and even the letters do not spell, just

For example, in a class, teachers in teaching Word Chinese book, English book, math book, school bag, notebook of the spelling, student movements of the body to write letters of a Word, some of them looked very excited, and some of them are purely there twist and even the letters do not spell, just