三年级学生观察日记三年级学生观察日记数菜籽
11月9日 晴今天科学课,李老师走进教室就问了我们两个问题:
“你们猜一猜,每棵油菜上大约有多少个菜荚?每个菜荚里有多少颗菜籽?”
老师的话刚说完,大家就七嘴八舌地回答起来:“21个菜荚,20颗菜籽。”
“50个菜荚,16颗菜籽。”
“100多个菜荚,30几颗菜籽。”&hllip;&hllip;
李老师神秘地笑了笑,说:“我们还是到田里去解决这个问题吧!”
我们来到田边,一看,二十多天前,这里还是一片金黄,现在每一棵油菜的枝条上结满了一个个饱满的菜荚了,看起来有点沉。仔细观察菜荚,只见一颗颗种子胀满了它的“外衣”,圆鼓鼓的凸了出来,顶端尖尖的;剥去“外衣”——菜荚,里面的种子圆溜溜的,像一颗颗小珍珠晶莹发亮,十分好看。
我和仇琦两人一组合作数,我们两个两个地数,很快就数完了三株油菜。当我数到最后一棵的时候,大吃一惊,这株足足有400多个菜荚,它们密密麻麻地挂在茎上伸出的枝条上。我还从上面采来了一个菜荚,剥开数了数有27颗菜籽。
――刘 召
Today, scinc classs, th tachr askd us to walk into a classroom on two issus : "You guss.Rap about th numbr of dishs for ach pod? how many thr ar in ach pod vgtabls rapsd? "th tachr said just now.W will go on to answr : "21 dishs dioxin, 20 wr rapsd. "" Vanilla 50 dishs.Rapsd 16 satllits. "" Vanilla mor than 100 dishs, a fw of rapsd 30. ": : Th tachr smild mystriously and said :"W hav to solv this problm or to th filds!" W hav com to th dg, a look at two days ago,hr was still goldn, vry tr branchs rap of a month full of dishs full unity of th pod looks a bit Shn.Carful obsrvation pod vgtabls, I saw so many sds of its lgs "whil" a convx circular swlling, and th sharp tip;Has th "cloak" of dioxin -- vgtabls, sds insid th circl Liuliu, lik so many small shiny glistning parls, vry prtty.Thirs was a combination of m and a fw Qiuqi, two at svral quickly finishd svral lngthy rap.Whn I find that th tr cam ovr 400 pags of this strain of dioxin in food,Thy'r hlping to hang on branchs stms.I hav to adopt a vgtabl dioxin from abov, catching 27 rapsd augmntd.