Algorithms and Scratch Basics

Different characters on screen are called:

• Players

• Sprites

• Icons

• Images

Start

Put your hand on the doorknob

Turn the doorknob to the side until it unlocks the door

Push or pull the door to open it

End

..................................................

What would be an appropriate title for this algorithm?

• How to push a door

• Steps to stand infront of a door

• Steps to touch a doorknob

• How to open a door

What does this green flag mean in scratch?

• Nothing

• Start

• STOP

• I don't know

What will happen when the green flag is clicked?

• Add a new sprite

• Make the character spin

• Move the character 15 steps

• Nothing

What does this block say when clicked?

• Hello!

• Don't eat me!

• 2 seconds

• Nothing

The Scratch logo contains a....

• Koala
• Cat
• Lion
• Dog

A program is

• a red fruit with lots of seeds.

• a collection of instructions (blocks) that a computer follows to complete a task.

• a language that computers recognize.

What kind of block do I use to make my sprite move around?

• Motion
• Sound
• Sensing
• Control

You can have more than one sprite.

• True

• False

Breaking down a task to smaller, easier to solve problems is called:

• Algorithn design

• Decomposition

• Abstraction

• Pattern Recognition