Scratch Basics Final Exam

Nora and Abigail are exploring the Scratch programming environment. What is the main purpose of Scratch?

• To create text-based programs

• To create visual and interactive projects

• To write complex algorithms

• To compile code into machine language

Answer explanation

The main purpose of the Scratch programming environment is to create visual and interactive projects.

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DOK Level 1: Recall

Hey Scratch enthusiasts! Evelyn and Noah are curious: Which block category in Scratch is used to control the flow of the program?

• Motion

• Looks

• Control

• Sensing

Answer explanation

The 'Control' block category in Scratch is used to control the flow of the program, making it the correct choice for this question.

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DOK Level 1: Recall

Zoe and Abigail are excited to start their first Scratch project! Can you help them identify the correct sequence of steps to create a new Scratch project?

• Open Scratch, click on "File", select "New"

• Open Scratch, click on "Create", start coding

• Open Scratch, click on "Edit", select "New"

• Open Scratch, click on "Project", select "New"

Answer explanation

Open Scratch, click on 'Create', start coding. This is the correct sequence to create a new Scratch project.

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DOK Level 1: Recall

Hey Kai, Noah, and Daniel! Can you tell me what the "forever" loop does in Scratch?

• To repeat a set of instructions a specific number of times

• To repeat a set of instructions indefinitely

• To execute instructions only once

• To stop the execution of instructions

Answer explanation

The 'forever' loop in Scratch is used to repeat a set of instructions indefinitely, allowing for continuous execution of the specified code block.

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DOK Level 1: Recall

Imagine you're helping Ava and Scarlett program their sprite in Scratch. How would you use the "if-else" block to make the sprite say "Hello" if it touches the edge of the stage, and "Goodbye" otherwise?

• Use the "if-else" block to check if the sprite is touching the edge, then use the "say" block inside the "if" and "else" sections to display the messages.

• Use the "repeat" block to check the condition and the "say" block to display the messages.

• Use the "forever" block to continuously check the condition and the "say" block to display the messages.

• Use the "wait" block to delay the check and the "say" block to display the messages.

Answer explanation

Use the "if-else" block to check if the sprite is touching the edge, then use the "say" block inside the "if" and "else" sections to display the messages.

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DOK Level 2: Skill/Concept

Hey there, Scratch superstar! Can you help Ethan and Hannah add a new sprite to their Scratch project?

• Click on the "Choose a Sprite" button, select a sprite from the library, or upload your own image.

• Click on the "File" menu, select "Import Sprite", and choose a sprite from your computer.

• Click on the "Edit" menu, select "Add Sprite", and draw a new sprite.

• Click on the "Project" menu, select "New Sprite", and choose a sprite from the library.

Answer explanation

Click on the 'Choose a Sprite' button, select a sprite from the library, or upload your own image.

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DOK Level 2: Skill/Concept

Grace and Evelyn are working on a Scratch project, but it's not working as expected. How can they debug their program?

• Check the code for errors, use the "say" block to display variable values, and test each part of the program separately.

• Restart the Scratch program and hope the error goes away.

• Delete the entire project and start over.

• Ignore the error and continue coding.

Answer explanation

Check the code for errors, use the 'say' block to display variable values, and test each part of the program separately. This approach helps identify and fix issues systematically.

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DOK Level 2: Skill/Concept

Hey Zoe, Grace, and Aiden! Do you know what the "broadcast" block in Scratch is used for?

• To send a message to all sprites to trigger specific actions

• To move a sprite to a specific position

• To change the appearance of a sprite

• To play a sound

Answer explanation

To send a message to all sprites to trigger specific actions

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DOK Level 1: Recall

Hey there, Scratch superstar! Can you help Oliver create a fun project where his sprite zooms forward 10 steps whenever he hits the space key? Describe the steps to make this happen.

• Use the "when space key pressed" block from the Events category and the "move 10 steps" block from the Motion category.

• Use the "when green flag clicked" block from the Events category and the "move 10 steps" block from the Motion category.

• Use the "when space key pressed" block from the Control category and the "move 10 steps" block from the Looks category.

• Use the "when space key pressed" block from the Sensing category and the "move 10 steps" block from the Motion category.

Answer explanation

Use the 'when space key pressed' block from the Events category and the 'move 10 steps' block from the Motion category.

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DOK Level 2: Skill/Concept

Nora and Rohan are planning a Scratch project to create a fun game where a sprite collects magical items and scores points. How should they plan their project?

• Define the game objective, design the sprites and backgrounds, create scripts for sprite movements and item collection, and add scoring logic.

• Start coding without any plan and add features as you go.

• Use only pre-made Scratch projects and modify them slightly.

• Focus only on the visual design and ignore the coding part.

Answer explanation

Define the game objective, design the sprites and backgrounds, create scripts for sprite movements and item collection, and add scoring logic.

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DOK Level 3: Strategic Thinking