Coding Concepts for Primary 6

What is an algorithm?

• A type of computer

• A set of instructions to solve a problem

• A type of block in coding

• A name for a variable

Answer explanation

An algorithm is defined as a set of instructions designed to solve a specific problem. This distinguishes it from other options, which do not accurately describe what an algorithm is.

What does a "loop" do in coding?

• Stops the program

• Repeats a set of instructions

• Deletes part of the code

• Changes the speed of the program

Answer explanation

A "loop" in coding is used to repeat a set of instructions multiple times until a certain condition is met. This allows for efficient execution of repetitive tasks, making it a fundamental concept in programming.

What is the purpose of an "if" statement?

• To store a value

• To repeat actions

• To check if a condition is true or false

• To end the program

Answer explanation

An 'if' statement is used to check if a condition is true or false. It allows the program to execute certain actions based on the result of that condition, making it essential for decision-making in code.

What is a "bug" in coding?

• A feature that makes programs run faster

• An error or mistake in the code

• A small part of the computer hardware

• A type of block

Answer explanation

A "bug" in coding refers to an error or mistake in the code that can cause a program to behave unexpectedly or crash. This makes "An error or mistake in the code" the correct choice.

How can you fix a bug in a program?

• By running the program without checking

• By debugging and correcting the errors

• By adding more loops

• By creating a new program

Answer explanation

The correct way to fix a bug is by debugging and correcting the errors. This process involves identifying the source of the problem and making necessary adjustments, rather than running the program blindly or creating a new one.

What is a "function" in coding?

• A block that repeats actions

• A set of instructions that can be used more than once

• A block used to store information

• A character in a story

Answer explanation

A function in coding is defined as a set of instructions that can be reused multiple times, allowing for efficient code management and organization. This makes the correct choice the second option.

What is the role of a "variable" in a program?

• To store a value that can change

• To create loops

• To make the program run slower

• To stop the program

Answer explanation

A variable in a program is used to store a value that can change during execution. This allows for dynamic data handling, making the program flexible and efficient.

In coding, what does "repeat until" mean?

• Repeat until the program crashes

• Repeat until a condition is met

• Repeat until the computer is turned off

• Repeat until a loop is broken manually

Answer explanation

"Repeat until" means to execute a block of code repeatedly until a specific condition is satisfied. This makes "Repeat until a condition is met" the correct choice, as it accurately describes the intended functionality.

Which of the following is an example of a condition in an "if" statement?

• A number stored in a variable

• A loop that runs 5 times

• Checking if the score is greater than 10

• A list of instructions

Answer explanation

The correct choice, 'Checking if the score is greater than 10', is an example of a condition in an 'if' statement. It evaluates a specific condition to determine the flow of the program.

Which block would you use to move a character forward in Code.org?

• Jump block

• Turn block

• Move forward block

• Repeat block

Answer explanation

The 'Move forward block' is specifically designed to move a character forward in Code.org. The other blocks serve different functions, such as jumping, turning, or repeating actions.