Once upon a time, there was a robot named Robo. Robo had a special ball-and-socket joint in his shoulder that allowed him to move his arm in any direction. He also had a swivel joint in his waist that let him turn around easily.

One day, while playing catch with his friends, Robo's arm got damaged. His friend, a mechanic, fixed it by using a suture to sew the broken parts together.

From then on, Robo was able to move his arm even more precisely and continue playing catch with his friends. The end.

Reflections

1. What kind of joint did Robo have in his shoulder?
2. How did Robo's arm get damaged?
3. Who fixed Robo's arm?
4. How did the repair help Robo move his arm?
5. What is a suture used for in the story?