Week 06 · Tuesday: Debugging (Code Crew G3)

Tuesday: Bug Hunt

Rocket wrote two step lists for Nova to test. Nova acts out the sandwich steps as a hologram. The hologram sandwich falls apart!

"That is silly," Rocket says with a laugh. "Something is out of order." Raven asks, "Which step came too soon?"

Nova says, "Read each step. Find the one that breaks the plan." Let's help them find the bug in each list.

Each set of steps has ONE bug. Circle it. Then write the fix.

(A) MAKE A SANDWICH
    1. Get bread
    2. Add banana slices
    3. Eat the sandwich
    4. Put two slices together

Bug is step ____. Fix:

(B) GO TO SCHOOL
    1. Get out of bed
    2. Walk to school
    3. Eat breakfast
    4. Put on shoes

Bug is step ____. Fix:

Try Without Paper

Tell a parent your morning routine, but mix up ONE step on purpose.
Can they spot the bug?

Most bugs are one of three kinds. A step can be in the WRONG ORDER. A step can be MISSING. Or a step can be WRONG.

Kind of bug	Example
Wrong order	Shoes before socks
Missing step	Pouring water with no cup
Wrong step	Turning left instead of right

NAME THE KIND OF BUG

Steps: get in the car, drive away. What kind of bug?

Steps: dry your hands, then wash your hands. What kind of bug?

Goal: clap 3 times. Code: REPEAT 3 TIMES: stomp. What kind of bug?

Steps: open the book, close the book, read a page. What kind of bug?

Goal: water the plant. Steps: fill the can, walk to the plant. Which action is missing?

Goal: count to 5. Code: say 1, say 2, say 4, say 5. Which number is missing?

Goal: turn right at the corner. The code says turn left. Which word is the bug?

Statement	True or false?
A missing step is a kind of bug.	?
Steps in the wrong order can cause a bug.	?
If every step is there, there can be no bug.	?
Changing left to right can fix a wrong step bug.	?

WHY THIS EXERCISEA program can have every step and still be wrong.

FIX THE HAND WASHING STEPS

WHY THIS EXERCISEPutting steps back in order fixes a wrong order bug.

Try it

Write three steps for caring for a plant.
Hide one bug: wrong order, missing or wrong.
Can a grown-up find it and name the kind?

Which kind of bug do you think is the hardest to spot? Why?

DEBUG THE LETTER STEPS: PUT THEM IN ORDER

WHY THIS EXERCISEA bug is often a step in the wrong place. Debuggers fix the order so each step has what it needs.