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Module 4 · Manhattan Navigation

Lesson 7 · The Challenge of Turning — Knowledge Checks

Name Date

  1. The robot moves from (2,3) to (3,3). Which direction is that, and what heading number?

    1. A.North, heading 0
    2. B.South, heading 2
    3. C.East, heading 1
    4. D.West, heading 3

    Answer Why?

  2. Going from (1,5) to (1,4), what does desired_heading return?

    1. A.0 (North)
    2. B.1 (East)
    3. C.2 (South)
    4. D.3 (West)

    Answer Why?

  3. Starting at heading 0 (N) and wanting heading 3 (W), how many right turns does turn_to make?

    1. A.1
    2. B.2
    3. C.3
    4. D.0

    Answer Why?

  4. Why must drive_path update self.position after each step?

    1. A.To make the robot faster
    2. B.So the next desired_heading() compares the next intersection against the correct current position
    3. C.To reset the heading to North
    4. D.It doesn't matter — position is never used again

    Answer Why?