老师布置我们回家种植小豆苗。我种了4粒黑豆,2粒黄豆,3粒红豆,1粒绿豆。终于有3粒豆子发芽了,我很高兴。“小豆苗有多高啊?”我好奇地问。“自己量一下,不就知道了吗?”奶奶说。于是我找来尺子,在奶奶的帮助下,我量出豆苗有10厘米高。这样,我学会了用尺子量东西。又过了10天时间,豆苗长高了。最高的有26厘米,最矮的有21厘米,中等的有24厘米。望着这些小豆苗,我问妈妈:“这10天,小豆苗分别长 Teacher layout we go home planting small bean seedlings. I planted 4 black beans, 2 soybeans, 3 red beans and 1 green bean. Finally, three beans sprout, I am very happy. ”How tall bean sprout ah?“ I asked curiously. ”Do not know it by yourself,“ said the grandmother. So I got a ruler, with the help of my grandmother, I measured the amount of bean sprouts 10 cm high. In this way, I learned to measure things with a ruler. After another 10 days, pea seedlings grow taller. The highest is 26 cm, the shortest is 21 cm and the middle is 24 cm. Looking at these small bean seedlings, I asked my mother: ”This 10 days, small bean seedlings were long