Sample Code for Debugging: Grade 3 Sequence Examples

📚 Quick Study Guide

• 🔢 What is a Sequence? A sequence is a list of instructions that a computer follows in order, one after another. Think of it like a recipe!
• 🕹️ Why are Sequences Important? Computers need clear instructions to perform tasks. Sequences ensure the computer knows exactly what to do and when to do it.
• ✏️ Examples of Sequences: Brushing your teeth (wet toothbrush, apply toothpaste, brush teeth), making a sandwich (get bread, add fillings, put bread together).
• 💡 Debugging Sequences: Debugging means finding and fixing errors. In sequences, check that the steps are in the correct order. What happens if you put the bread *after* the fillings?

Practice Quiz

1. Which of the following is the first step in a sequence for drawing a square?
   1. A. Erase the square.
   2. B. Draw a circle.
   3. C. Draw four equal sides connected.
   4. D. Color the square.
2. What happens if a step is missing in a sequence?
   1. A. The computer skips to the next step.
   2. B. The computer stops or gives an unexpected result.
   3. C. The computer repeats the previous step.
   4. D. The computer guesses what to do.
3. Which of the following sequences correctly describes how to tie your shoes?
   1. A. Tie laces, make a loop, cross laces.
   2. B. Cross laces, tie laces, make a loop.
   3. C. Make a loop, cross laces, tie laces.
   4. D. Cross laces, make a loop, tie laces.
4. You want to write a program to make a peanut butter and jelly sandwich. What should be the first step in your sequence?
   1. A. Spread peanut butter on one slice of bread.
   2. B. Get two slices of bread.
   3. C. Spread jelly on the other slice of bread.
   4. D. Put the two slices of bread together.
5. What does "debugging" a sequence mean?
   1. A. Making the sequence longer.
   2. B. Finding and fixing errors in the sequence.
   3. C. Running the sequence faster.
   4. D. Ignoring the sequence.
6. Which of these sequences will draw a triangle?
   1. A. Draw 4 lines.
   2. B. Draw 2 lines.
   3. C. Draw 3 lines connecting.
   4. D. Draw a circle.
7. If a sequence tells a robot to 'Move forward', then 'Turn left', then 'Move forward' again, what shape will the robot roughly make?
   1. A. A circle
   2. B. A square
   3. C. An L-shape
   4. D. A straight line