"Oh, my God," said Mrs. Kim. "I don't think we will be able to do our lesson today." Children loved Mrs. Kim's science lessons. Josh asked, "Why not?" "Well," began Mrs. Kim, "I had planned to do some measuring today. But I forgot to bring any ruler. We can't measure anything without a ruler, can we?"
"What are we going to measure?" asked Mathew. "I want you to measure the distance from one side of the classroom to the other side." answered Mrs. Kim. "We could measure it as my dad sometimes does，" said C. J. "He sometimes just puts one foot in front of the other. I guess that's how we find out how long something is. "
"Let's see whether that will work，"said Mrs. Kim. "Why don't you see how many feet it takes to cross the room, C. J. ？"C. J. began walking from one side of the classroom to the other side. He put one foot down and then put the heel of the other foot at the toe of his first foot. He continued doing this until he crossed the room. "I counted thirty of my feet from one side to the other side, " C. J. said.
"So you think the room is thirty feet across？"asked Mrs. Jim. "I think someone else should try "said Maddie "just to make sure. ""All right，Maddie "said Mrs. Kim "why don't you try？"
