【教学内容】苏教版六年级下册第56~57页。【教学过程】一、激趣引入1.课件播放Flash动画《数青蛙》:一只青蛙一张嘴,两只眼睛四条腿,扑通一声跳下水;两只青蛙两张嘴,四只眼睛八条腿,扑通扑通两声跳下水;三只青蛙三张嘴,六只眼睛十二条腿,扑通扑通扑通三声跳下水;四只青蛙四张嘴,八只眼睛十六条腿,扑通扑通扑通扑通四声跳下水。2.从数学的角度,你听出了哪些信息?(PPT:动态呈现并 【Teaching content】 Sujiao version of the sixth grade volumes 56 ~ 57 pages. [Teaching process] One, the introduction of interest 1. Courseware Play Flash animation “a few frogs”: a frog mouth, four eyes with two eyes, splashing jumped into the water; two frogs two mouths, four eyes eight legs, thump Thrashing twice to jump into the water; three frogs three mouths, six eyes twelve legs, thump thump thump thump threesome jumped into the water; four frogs four mouth, eight eyes sixteen legs, thump thump thump Thump Thump thump . 2. From the mathematical point of view, what information did you hear? (PPT: Dynamically rendered