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The stage is 360 pixels tall and 480 pixels wide.
UNDERSTANDING BLOCKS
Blocks are puzzle piece shapes that are used to give instructions to the computer.
A collection of inter-locked blocks, called script make a code in Scratch. When you
click on the Script, Scratch runs the blocks from top to bottom.
To use a block, simply select it and then drag it onto the scripts pane.
To remove a block from a script, just drag it to the left, away from the scripts
pane.
Some of the common categories of blocks are: Motion, Looks, Sound, Pen,
Variables, Events, Control, Sensing, and Operators.
Block category Use
These blocks are used to place your sprites on the stage or
Motion move them.
These blocks control what your sprites and backdrop look
Looks like.
Events blocks control how the blocks in a script will start to
Events run.
These blocks are used to play or stop sounds.
Sound
These blocks are used to draw shapes and patterns on the
Pen stage, change the pen colour and size.
These blocks control the blocks within your scripts, inserting
Control conditional statements, loops, repeats and pauses.
These blocks identify what's happening at a given point and
Sensing make your sprites or background respond to user actions.
These blocks let you make comparisons between or perform
Operators arithmetic functions on different values.
Introduction to Scratch 71

