Line Tracking

Check Your Understanding

1. If the robot is seeing black, what can it tell about its position?
   1. It is over the line.
   2. It is outside of the line to the left.
   3. It is outside of the line to the right.
   4. It is facing northward.
2. Suppose the robot is tracking the left edge of the line, and sees black. Which direction should it move?
   1. Forward and to the left, because the left edge is in that direction
   2. Forward and to the right, because the left edge is in that direction
   3. Straight forward, because the line will curve eventually
   4. Turn left in place, because the left edge is in that direction
3. Which basic program pattern is being used in this Line Tracking behavior?
   1. Sequential Movements
   2. Parallelism
   3. Repeated Decisions
   4. Variables

Click here for the Answers

A. It is over the line

A. Forward and to the left, because the left edge is in that direction

C. Repeated Decisions