One day, a boy named Tim was eager to sort his toy cars. He had a big box with many cars. Tim wanted to put the cars in small groups. He thought it would be fun.
Tim's mom said, "Be careful with the small cars. They may get lost." Tim said, "I will be careful, Mom." He started to sort his cars by color. He had red cars, blue cars, and green cars. Tim was happy.
But then, Tim found a tiny car. It was so small, it could fit in a cell. He put the tiny car in a safe place so it would not get lost. Later, Tim showed his mom all the sorted cars. His mom was proud of him. And the tiny car was safe, just like his mom said.
