Linus' class gives a presentation on America's great inventors, from the creation of the telephone to the electric light. Linus starts by talking about the invention of the telephone.

Peppermint Patty gives a presentation about Thomas Edison and his improvements to Graham Bell's technology.

Sally gives a class presentation of famous firsts from the 1870s to the 1900s. She brings Snoopy to help with her presentation.

Beakman shares some examples of things invented by accident. Then they use the steps to creating an invention to create something new.

The Cybersquad invents something similar to a vacuum cleaner that will clean up all of the confetti on the floor. When the invention appears to be lackluster, they brainstorm ways to improve it. After some persistence, they eventually find a solution that cleans up the confetti.