Unit 3 Lesson 5: Check for Understanding

Which of the following words means a statement that evaluates to true or false?

• Repeat

• Conditional

• Pseudocode

• Debugging

True or False? The following statement is a conditional statement: "If it is raining, then I will bring an umbrella to school."

• True

• False

Scratch Cat is facing right. There is a green ball sprite 10 steps to the right of the Scratch Cat sprite. Based on the sequence of blocks below, what will Scratch Cat say when the green flag is clicked?

• Nothing

• Green! Red!

• Green!

• Red! Green!

• Red!

What does this Boolean statement evaluate to?

• True

• False

Writing pseudocode is helpful when we are creating computer programs. This is because:

• Pseudocode tells us whether a conditional statement is true or false.

• Pseudocode allows us to run our programs multiple times in a row.

• Pseudocode can only be used when programming in Scratch, but not in other programming languages

• Pseudocode lets us write out step-by-step descriptions to help us figure out how to make our programs do what we want them to do.