My goal is to encourage our 7-12 students about STEM and to learn "how things work". I designed an in-school model building project. The students build a radio control car into which they insert an Arduino Nano between the radio receiver incoming signal wires and the steering servo and Electronic Speed Control. The car's robotic job is to race around a unfurnished room hugging the wall. It has two sonar sensors. One pointed forward. The other pointed to the right. These the Arduino uses to determine which direction to steer and whether to go forward, backward, or apply the brakes.
Here is a document which includes a course curriculum, pictures of the car, more videos, a wire list, a parts list, and a pointer to the C-code that works. It is this document that the teachers and students received.http://www.employees.org/~kjones/Robocar Course Curriculu1.doc
This package was offered across the country by Ten80 Education as a competitive challenge. Only one teacher/class in the United States succeeded in building the car. When I asked that teacher why he thought no one else had succeeded he replied, "Not enough time." I am not sure how to interpret that response.
I am discouraged and have been planning to put the project up in the attic.
Today it occurred to me that this Arduino Forum might have some constructive suggestions.