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根据种皮颜色和种子的形状,我们可以把大豆分为五类:黄大豆、青大豆、黑大豆、其他大豆(种皮为褐色、棕色、赤色等单一颜色的大豆)、饲料豆(一般籽粒较小,呈扁长椭圆形,两片叶子上有凹陷圆点,种皮略有光泽或无光泽)。让爸爸妈妈帮忙,找出各种各样的豆子。现在,用你的方法来给它们分分类吧!你需要:各种各样的豆子,一张大纸,铅笔。第一步:在纸上画两个圈儿。想一种分类方法,把豆子分为两组,分别放在两个圈儿里。
According to the seed coat color and seed shape, we can divide the soybean into five categories: yellow soybean, green soybean, black soybean, other soybean (monocotyledonous seed coat is brown, brown and red), feed bean Smaller, flattened oval, two leaves with sunken dots, a slightly shiny or matt seed coat). Help parents to find a variety of beans. Now, use your method to classify them! You need: a variety of beans, a piece of paper, pencil. The first step: draw two circles on the paper. Think of a classification method, the beans are divided into two groups, respectively, on two laps.