论文部分内容阅读
在2004年部分省市的物理中考中,出现了要求学生根据实验原理,结合实验过程,进行具体思维,以设法减小密度测量误差的试题,这类试题能很好地考查学生思维的深刻性和全面性,现选析二例,供参考.例1(黑龙江省)我省生产的大豆颗粒饱满、质地坚实、出油量高,在国内外市场上享有很高的声誉.小明猜想这种大豆密度一定很大,为此,他请教张大伯.张大伯说他的猜想是
In the physical examinations of some provinces and cities in 2004, there were questions that required students to carry out concrete thinking based on experimental principles and experimental procedures in order to reduce the error of density measurement. Such questions can well examine the deep thinking of students’ thinking. And comprehensiveness, now analyze and analyze two cases, for reference. Example 1 (Heilongjiang Province) The province produced soy grains full, solid texture, high oil output, enjoy a high reputation in the domestic and foreign markets. Xiaoming guess this kind of Soybean density must be very large, for which he consulted Zhang Dabo. Zhang Dabo said his conjecture was