Assessment: EV3 - Flashlight Follower
Assessment Type:
Challenge
Flashlight Follower
This is a more open-ended challenge that combines the new turning skills with prior learning about the light sensor. Students need to create a robot that will follow a flashlight beam through a lengthy course involving turns in both directions. (Note: the robot must follow the flashlight beam, not just respond (e.g. turn) when the light is shined on it or it hears a sound, etc.)
In addition to the above items, some key learning to watch for is:
- Writing a program that repeats the same behavior over and over creates a very long program when done with cut-and-paste - students may discover (or you may want to introduce) the infinite loop to repeat a set of commands
- Reliability and precision of the follower will improve by following the beam on the ground rather than in the air
- This is an application where the light sensor may work better with the LED turned off (ambient light mode) - this creates a larger contrast between beam and no-beam
- There will be a trade-off between speed of the robot and ease of control - students will need to find the optimal balance for the minimum time through the course
Education Level:
Middle School
High School
Focus Subject:
Mathematics
Robotics Hardware
Robotics Software
