通过聚焦促使人类观念发生两次飞跃的日心说的建立和行星的椭圆轨道的发现,然后探究开普勒第三定律的发现过程。探究过程利用计算机与网络辅助学生,学生在线查询到2012年国际天文协会提供的一份八大行星数据表,结合这一数据用excel绘制图像,经过猜想、修正、再猜想,最后探究得出开普勒第三定律。 By focusing on the establishment of the heliocentric theory and the discovery of the elliptical orbit of the planet, which led to two leaps in the human concept, the process of discovering the third law of Kepler is explored. The process of inquiry uses computer and network to assist students. Students can inquire online a table of eight planets provided by the International Astronomical Association in 2012, and use this data to draw an image with Excel. After guesswork, correction and re-guess, the final exploration leads to Cape Town Le third law.