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Robotics Worksheet: Debugging Robot Programs

Robotics lesson 26: Debugging robot programs · Set 604 · 40 questions
TalentJR

Robot tip (Compare and fix one thing): Run it, spot what went wrong, find the buggy line, fix one thing, test again. Wrong side → a turn is the wrong way. Too far or too short → a forward number is wrong. A shape that does not close → the turn should be 360 ÷ sides; a gap → the repeat number should equal the sides.

NameDateTime takenScore ___ / 40
  1. 1.🐞 A robot starts at (5, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (3, 7). Its program:
    1. forward 5
    2. turn left
    3. forward 2
    It stops at (3, 6) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  2. 2.🐞 This program should draw a regular hexagon (6 equal sides), but it leaves a gap:
    repeat 3 { forward 10 cm; turn right 60° }
    What should the number 3 after “repeat” be?
  3. 3.🐞 A robot turns the wrong way at every corner. What is the likely bug? (a) battery is too new (b) the floor is clean (c) left and right mixed up (d) wheels are too round
  4. 4.🐞 A mistake in a program is called a … (a) sensor (b) gear (c) bug (d) loop
  5. 5.🐞 This program should draw a regular octagon (8 equal sides), but the shape does not close:
    repeat 8 { forward 10 cm; turn right 90° }
    What should 90 be changed to?
  6. 6.🐞 This program should draw a regular square (4 equal sides), but the shape does not close:
    repeat 4 { forward 10 cm; turn right 60° }
    What should 60 be changed to?
  7. 7.🐞 This program should draw a regular square (4 equal sides), but it leaves a gap:
    repeat 3 { forward 10 cm; turn right 90° }
    What should the number 3 after “repeat” be?
  8. 8.🔢 To debug a robot program, which comes first: “spot what went wrong” or “run the program”? (a) run the program (b) spot what went wrong
  9. 9.🔢 To debug a robot program, which is the FIRST step? (a) find the buggy line (b) run the program (c) fix one thing (d) test it again
  10. 10.🔢 To debug a robot program, which comes first: “run the program” or “fix one thing”? (a) fix one thing (b) run the program
  11. 11.🐞 A robot starts at (4, 0) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (6, 3). Its program:
    1. forward 3
    2. turn left
    3. forward 2
    It stops at (2, 3) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  12. 12.🔢 To debug a robot program, which comes first: “run the program” or “spot what went wrong”? (a) run the program (b) spot what went wrong
  13. 13.🐞 A robot starts at (5, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (3, 5). Its program:
    1. forward 3
    2. turn right
    3. forward 2
    It stops at (7, 5) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  14. 14.🔢 To debug a robot program, what comes right after “run the program”? (a) find the buggy line (b) fix one thing (c) spot what went wrong (d) test it again
  15. 15.🐞 A robot starts at (5, 0) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (7, 6). Its program:
    1. forward 6
    2. turn left
    3. forward 2
    It stops at (3, 6) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  16. 16.🐞 This program should draw a regular octagon (8 equal sides), but it leaves a gap:
    repeat 3 { forward 10 cm; turn right 45° }
    What should the number 3 after “repeat” be?
  17. 17.🐞 This program should draw a regular triangle (3 equal sides), but the shape does not close:
    repeat 3 { forward 10 cm; turn right 90° }
    What should 90 be changed to?
  18. 18.🔢 To debug a robot program, which comes first: “spot what went wrong” or “test it again”? (a) spot what went wrong (b) test it again
  19. 19.🐞 This program should draw a regular octagon (8 equal sides), but the shape does not close:
    repeat 8 { forward 10 cm; turn right 60° }
    What should 60 be changed to?
  20. 20.🔢 To debug a robot program, which comes first: “run the program” or “find the buggy line”? (a) run the program (b) find the buggy line
  21. 21.🐞 This program should draw a regular triangle (3 equal sides), but the shape does not close:
    repeat 3 { forward 10 cm; turn right 72° }
    What should 72 be changed to?
  22. 22.🔢 To debug a robot program, which comes first: “fix one thing” or “run the program”? (a) run the program (b) fix one thing
  23. 23.🐞 A robot starts at (5, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (8, 7). Its program:
    1. forward 6
    2. turn right
    3. forward 4
    It stops at (9, 7) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  24. 24.🐞 A robot starts at (5, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (7, 5). Its program:
    1. forward 3
    2. turn left
    3. forward 2
    It stops at (3, 5) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  25. 25.🐞 A robot starts at (5, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (3, 7). Its program:
    1. forward 6
    2. turn right
    3. forward 2
    It stops at (7, 7) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  26. 26.🐞 This program should draw a regular hexagon (6 equal sides), but it leaves a gap:
    repeat 4 { forward 10 cm; turn right 60° }
    What should the number 4 after “repeat” be?
  27. 27.🐞 A robot starts at (4, 2) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (5, 7). Its program:
    1. forward 5
    2. turn right
    3. forward 2
    It stops at (6, 7) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  28. 28.🔢 To debug a robot program, what comes right after “spot what went wrong”? (a) test it again (b) find the buggy line (c) run the program (d) fix one thing
  29. 29.🐞 A robot starts at (4, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (3, 6). Its program:
    1. forward 5
    2. turn left
    3. forward 2
    It stops at (2, 6) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  30. 30.🐞 A robot starts at (5, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (2, 5). Its program:
    1. forward 4
    2. turn right
    3. forward 3
    It stops at (8, 5) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  31. 31.🐞 This program should draw a regular triangle (3 equal sides), but the shape does not close:
    repeat 3 { forward 10 cm; turn right 60° }
    What should 60 be changed to?
  32. 32.🐞 Why change only one thing at a time when debugging? (a) to make it slower (b) to save paper (c) to see what fixed it (d) to confuse others
  33. 33.🐞 This program should draw a regular hexagon (6 equal sides), but the shape does not close:
    repeat 6 { forward 10 cm; turn right 72° }
    What should 72 be changed to?
  34. 34.🔢 To debug a robot program, what comes right after “find the buggy line”? (a) spot what went wrong (b) test it again (c) run the program (d) fix one thing
  35. 35.🐞 This program should draw a regular octagon (8 equal sides), but it leaves a gap:
    repeat 6 { forward 10 cm; turn right 45° }
    What should the number 6 after “repeat” be?
  36. 36.🐞 A robot starts at (4, 0) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (5, 2). Its program:
    1. forward 2
    2. turn left
    3. forward 1
    It stops at (3, 2) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  37. 37.🐞 This program should draw a regular square (4 equal sides), but it leaves a gap:
    repeat 2 { forward 10 cm; turn right 90° }
    What should the number 2 after “repeat” be?
  38. 38.🐞 A robot starts at (5, 1) facing north (the second number counts squares up, the first counts squares across to the east). It should stop on the star at (3, 6). Its program:
    1. forward 5
    2. turn right
    3. forward 2
    It stops at (7, 6) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  39. 39.🐞 This program should draw a regular triangle (3 equal sides), but it leaves a gap:
    repeat 2 { forward 10 cm; turn right 120° }
    What should the number 2 after “repeat” be?
  40. 40.🐞 This program should draw a regular square (4 equal sides), but the shape does not close:
    repeat 4 { forward 10 cm; turn right 72° }
    What should 72 be changed to?

Answer key

  1. line 1
  2. 6
  3. left and right mixed up
  4. bug
  5. 45
  6. 90
  7. 4
  8. run the program
  9. run the program
  10. run the program
  11. line 2
  12. run the program
  13. line 2
  14. spot what went wrong
  15. line 2
  16. 8
  17. 120
  18. spot what went wrong
  19. 45
  20. run the program
  21. 120
  22. run the program
  23. line 3
  24. line 2
  25. line 2
  26. 6
  27. line 3
  28. find the buggy line
  29. line 3
  30. line 2
  31. 120
  32. to see what fixed it
  33. 60
  34. fix one thing
  35. 8
  36. line 2
  37. 4
  38. line 2
  39. 3
  40. 90

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