Scratch Basic Users Guide
First of all… Download Scratch Here:
The Work Area
scratch is a new programming language that lets you create your own interactive stories, animations, games, music, and art.
The Blocks
Motion
Looks
Sound
Pen
Control
Sensing
Numbers
Variables
Getting Started
The following ideas are designed to help you get an idea of what can be done using Scratch. For more ideas look through the sample projects by clicking open and choosing from the different areas.
Talking Characters
Open a new project by clicking ‘new’ on the top tool bar. You should see this:
Click the looks block list:
Click and drag into the script area:
Click the text ‘Hello!’ and change to something else.
Double click the block you have just changed and a speech bubble will appear next to the cat (sprite) for 2 seconds.
To make 2 characters seem to interact. You need to add in a broadcast.
Click on ‘Choose new sprite from file’
Pick a sprite from any of the folders and select
‘ok’. Your sprite will appear on the stage.
Select sprite 1
Then in the control blocks section choose broadcast and add it to the say block:
Click the dropdown menu in the broadcast block choose new and name it 1
Click ‘ok’. This will broadcast 1 once the cat has spoken. You now need sprite 2 to receive the broadcast to reply.
Select sprite 2:
Then make this set of blocks in the scripts section.
Select sprite 1 again and double click the script as before to see the program run.
The cat’s bubble will stay for 2 seconds. Then….
The boy’s bubble appears for 2 seconds.
Try building this program:
This time I have added a start block. The program will run when I click the green flag(top right)
Sprite 1 (the cat)
Sprite 2 (the boy)
Cats Eyes
Open a new Scratch Project.
Select paint new sprite
Using the elipse tool
draw a large white circle
and a smaller black circle
to look like an eye ball.
Select ok.
Click on shrink sprite.
Then click on the eye to get it to
Your desired size.
Click on the copy stamp.
Then click on sprite 2 (the eye you drew).
It will appear on top of itself but sprite 3 will
show below the stage.
Drag Sprite 3 (the eye) into place
Select one of the eyes by double clicking it. Or clicking the relevant sprite below the stage.
Write this program:
Control
Motion
Use the copy stamp
Copy the program
(remember to click to top
to get all of the program)
Click on other eye sprite to copy the program to it.
Click the gren flag to test your program.
Photo Distort
Open a new Scratch Project
Select the costumes tab.
Select the Edit button on costume 1
Select import, navigate to the image you want
and select ok.
Write this program for your picture:
Sensing
This checks if the mouse pointer
is touching the picture.
Control
Keeps going as long as sensing
is true
Numbers
Changes fish eye effect depending on where
the mouse is on the x axis of the picture.
The pictures below show what happens after you click the gren flag and move the mouse over the picture.
Controling A Sprite
Open a new Scratch Project
Write this program:
Click arrow for drop down menu
Press the right arrow and watch the Sprite (cat) move to the right.
Copy and paste the program below using the stamp tool.
Change the ‘control’ drop down to left arrow.
Change the ‘motion’ change x by 10 to change x by -10.
Now the sprite (cat) will move in the direction of the left and right arrows when pressed.
Now add this program:
Try moving the sprite (cat) around the screen
Make your program more realistic by changing the costume to face the correct way.
Click the costumes tab and import costume.
Open the animals file and find the cat.
Use the rotate and flip tools to create these costumes
Now add to your program and test it.