苏教版三年级下册数学教科书第72页上,有这样一个“你知道吗”的内容:一个物体到了月球上,它的重量只是在地球上的1/6。例如,小明在地球上的体重是30千克,到了月球上的体重只有5千克了。如果你到了月球上,体重大约只有几千克了?这个“你知道吗”的本意应是将数学与科学知识相结合,在学习数学的同时进行科普教育,但这里面却出现了一个最基本的科学错误,即混淆了重量与质量的关系。一个物体到了月球上,它的重量只是在地球上的1/6。这里的 There is such a “do you know?” Text on page 72 of the second edition of the Sujah ​​Textbook that an object arrives on the moon and weighs only 1/6 of the earth. For example, Xiao Ming weighs 30 kilos on Earth and only 5 kilos to the moon. If you get to the moon, weighing only a few kilos? The “You know?” The intention is to combine mathematics and scientific knowledge, while learning mathematics science education, but there is a The basic scientific mistake is to confuse the relationship between weight and quality. When an object reaches the moon, it weighs only 1/6 of the earth. here