［北师大版］八年级数学教案全套［上下两册］【八年级上册教案｜全套】【八年级上册教案｜全套】....................................................................................................................................I第一章勾股定理.....................................................................................................................................................1§1.1探索勾股定理（一）..............................................................................................................................1§1.1探索勾股定理（二）...........................................................................................................................2§1．2能得到直角三角形吗.........................................................................................................................3课题学习拼图与勾股定理.......................................................................................................................4拼图与勾股定理第二课时...............................................................................................................................6第二章实数.............................................................................................................................................................7§2.1数怎么又不够用了(一)............................................................................................................................7§2.1数怎么又不够用了(二)............................................................................................................................9§2.2平方根（1）...........................................................................................................................................12§2.2平方根（二）.........................................................................................................................................14§2.3立方根.....................................................................................................................................................15§2.4公园有多宽...........................................