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Robotics Worksheet: Debugging Robot Programs

Robotics lesson 26: Debugging robot programs · Set 365 · 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.🔢 To debug a robot program, which comes first: “fix one thing” or “run the program”? (a) fix one thing (b) run the program
  2. 2.🐞 Why change only one thing at a time when debugging? (a) to make it slower (b) to save paper (c) to confuse others (d) to see what fixed it
  3. 3.🐞 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 (3, 5). Its program:
    1. forward 3
    2. turn left
    3. forward 2
    It stops at (2, 5) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  4. 4.🔢 To debug a robot program, which comes first: “run the program” or “spot what went wrong”? (a) spot what went wrong (b) run the program
  5. 5.🐞 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, 3). Its program:
    1. forward 3
    2. turn left
    3. forward 1
    It stops at (3, 4) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  6. 6.🐞 This program should draw a regular octagon (8 equal sides), but it leaves a gap:
    repeat 5 { forward 10 cm; turn right 45° }
    What should the number 5 after “repeat” be?
  7. 7.🐞 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 3 (c) line 2
  8. 8.🐞 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 (2, 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 2 (b) line 1 (c) line 3
  9. 9.🐞 This program should draw a regular pentagon (5 equal sides), but it leaves a gap:
    repeat 2 { forward 10 cm; turn right 72° }
    What should the number 2 after “repeat” be?
  10. 10.🔢 To debug a robot program, which is the LAST step? (a) fix one thing (b) test it again (c) spot what went wrong (d) run the program
  11. 11.🐞 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?
  12. 12.🐞 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 (5, 3). Its program:
    1. forward 3
    2. turn right
    3. forward 1
    It stops at (5, 4) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  13. 13.🔢 To debug a robot program, which comes first: “spot what went wrong” or “test it again”? (a) test it again (b) spot what went wrong
  14. 14.🐞 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) wheels are too round (d) left and right mixed up
  15. 15.🐞 This program should draw a regular hexagon (6 equal sides), but it leaves a gap:
    repeat 5 { forward 10 cm; turn right 60° }
    What should the number 5 after “repeat” be?
  16. 16.🔢 To debug a robot program, which is the FIRST step? (a) find the buggy line (b) spot what went wrong (c) run the program (d) test it again
  17. 17.🔢 To debug a robot program, which comes first: “fix one thing” or “find the buggy line”? (a) find the buggy line (b) fix one thing
  18. 18.🐞 A mistake in a program is called a … (a) loop (b) sensor (c) gear (d) bug
  19. 19.🐞 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?
  20. 20.🐞 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 (6, 7). Its program:
    1. forward 6
    2. turn right
    3. forward 1
    It stops at (6, 8) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  21. 21.🔢 To debug a robot program, what comes right after “fix one thing”? (a) spot what went wrong (b) test it again (c) run the program (d) find the buggy line
  22. 22.🐞 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?
  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 (3, 3). Its program:
    1. forward 3
    2. turn left
    3. forward 2
    It stops at (3, 4) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  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 (6, 8). Its program:
    1. forward 5
    2. turn right
    3. forward 1
    It stops at (6, 7) instead. Which line has the bug?     (a) line 1 (b) line 2 (c) line 3
  25. 25.🐞 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, 6). Its program:
    1. forward 4
    2. turn right
    3. forward 2
    It stops at (6, 6) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  26. 26.🐞 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?
  27. 27.🐞 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?
  28. 28.🐞 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 7
    2. turn left
    3. forward 2
    It stops at (3, 8) instead. Which line has the bug?     (a) line 1 (b) line 3 (c) line 2
  29. 29.🐞 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 (6, 8). Its program:
    1. forward 6
    2. turn left
    3. forward 2
    It stops at (2, 8) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  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 (3, 5). Its program:
    1. forward 4
    2. turn left
    3. forward 1
    It stops at (4, 5) instead. Which line has the bug?     (a) line 3 (b) line 1 (c) line 2
  31. 31.🐞 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, 4). Its program:
    1. forward 4
    2. turn left
    3. forward 2
    It stops at (3, 5) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  32. 32.🐞 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?
  33. 33.🐞 This program should draw a regular pentagon (5 equal sides), but the shape does not close:
    repeat 5 { forward 10 cm; turn right 45° }
    What should 45 be changed to?
  34. 34.🐞 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?
  35. 35.🐞 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 (2, 4). Its program:
    1. forward 4
    2. turn left
    3. forward 2
    It stops at (2, 5) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  36. 36.🐞 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 (2, 6). Its program:
    1. forward 5
    2. turn left
    3. forward 1
    It stops at (3, 6) instead. Which line has the bug?     (a) line 2 (b) line 3 (c) line 1
  37. 37.🐞 This program should draw a regular triangle (3 equal sides), but the shape does not close:
    repeat 3 { forward 10 cm; turn right 45° }
    What should 45 be changed to?
  38. 38.🐞 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, 3). Its program:
    1. forward 3
    2. turn left
    3. forward 2
    It stops at (3, 3) instead. Which line has the bug?     (a) line 3 (b) line 2 (c) line 1
  39. 39.🐞 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 (7, 4). Its program:
    1. forward 3
    2. turn right
    3. forward 1
    It stops at (6, 4) instead. Which line has the bug?     (a) line 2 (b) line 1 (c) line 3
  40. 40.🔢 To debug a robot program, what comes right after “run the program”? (a) test it again (b) spot what went wrong (c) fix one thing (d) find the buggy line

Answer key

  1. run the program
  2. to see what fixed it
  3. line 3
  4. run the program
  5. line 1
  6. 8
  7. line 2
  8. line 3
  9. 5
  10. test it again
  11. 120
  12. line 1
  13. spot what went wrong
  14. left and right mixed up
  15. 6
  16. run the program
  17. find the buggy line
  18. bug
  19. 3
  20. line 1
  21. test it again
  22. 120
  23. line 1
  24. line 1
  25. line 3
  26. 120
  27. 45
  28. line 1
  29. line 2
  30. line 3
  31. line 1
  32. 8
  33. 72
  34. 8
  35. line 1
  36. line 3
  37. 120
  38. line 2
  39. line 3
  40. spot what went wrong

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