Introduction to Snap Programming Scratch Programming

Control= Hat Block: and C Block =Motion Blocks

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Snap Programming Vocabulary A program consisting of one or more scripts, each of which is made of blocks. 2, Script A series of instructions run from top to bottom in the program also the script is used to animate, control and change the looks of a sprite or background 3. Sprite A user defined object (character) in Snap Programming 4 Scripts area You drag blocks in, snap them together in a sequence in this area.

Snap Programming Vocabulary 5. Blocks palette area that contains the basic blocks for programming your sprites (left column). 6. Stage where you see your stories, games, and animations come to life. (right column) 7. Code refers to the commands that a programmer writes to make a program. Code can be used to make a program. In scratch, the word "code" will be used to refer to scripts.

Snap Programming Vocabulary 8. Sequence arrangement in which things follow in logical order or a recurrent (repeating) pattern. 9. Algorithm is a self-contained sequence of actions to be performed. You drag blocks in, snap them together in a sequence in this area.

What is Snap Programming? A Snap! program consists of one or more scripts, each of which is made of blocks.

Parts of the Snap programming window.

Two Main types of blocks 1.At the top of the script is a hat block, which indicates when the script should be carried out. Hat block names typically start with the word “when”; 2. The other blocks are command blocks: For example, this block tells the sprite to move ten steps. 3. C-shaped blocks can be put in a script in two ways

E-shaped” blocks with more than one C-shaped slot, only the first slot will wrap around existing blocks in a script, and only if that C-shaped slot is empty before wrapping

Just below the stage is the “new sprite” button Just below the stage is the “new sprite” button . Click the button to add a new sprite to the stage. The new sprite will appear in a random position on the stage, facing in a random direction, with a random color. Try putting one of the following scripts in each sprite’s scripting area: https://snap.berkeley.edu/snapsource/snap.html Snap Playground

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