Once upon a time, there was a kind and curious robot named Rollo. Rollo loved to explore the world and learn new things. One day, while wandering through the forest, he came across a strange object. It was a joint with a knurled surface and a laminated design. Rollo was fascinated by this object and decided to take it back to his workshop to study it.

He tried to figure out what the joint was for, but no matter how hard he tried, he just couldn't seem to get it to move. So, Rollo decided to take a closer look by using his special tools. He discovered that the knurled surface was used to grip the joint, and the laminated design was to make it strong and durable.

Finally, Rollo realized that the joint was used to connect two pieces of wood at a level angle. He was so proud of himself for figuring out the mystery of the joint! From that day on, Rollo used his newfound knowledge to help build many beautiful structures in the forest. The end.

Reflections

1. What did Rollo find in the forest?
2. Why was Rollo fascinated by the object he found?
3. How did Rollo figure out the purpose of the joint?
4. What did Rollo use the joint for?
5. What did Rollo build in the forest using the joint?