When creating a new program on Scratch, the CAT will be the sprite that you are commanding unless you change it to a different sprite.

Depending on what you want to create on the stage, you might have more than one sprite and may be programming multiple sprites so they interact.

Sprites can be edited by changing their costumes, the size, the location, or direction that it is facing.

Sometimes a program does not require a visual sprite on the stage. The sprite can be hidden by the click of a button so a program can run and not be obstructed by a visual sprite.

Sequences are the step by step instructions (aka the code, the program, the script, the algorithm)

In block based programs, you snap together different blocks to create ordered steps. The computer reads the instructions from top to bottom.

When you RUN the program, the sprite will perform the steps on the STAGE.

The stage can be changed by adding a BACKDROP, switching to a different backdrop as the program runs, or editing the backdrop.

Your program must start with a yellow event block so the program knows when to run.

There are multiple event blocks to choose from.

When you are creating a program, you may have multiple events happening (multiple scripts on the coding pane). For example, you might run your main program/script by clicking on the green flag (this is event 1), but then you want to erase or reset what is on the stage before you run the main program again. This can be done by clicking on the space bar which has its own program that erases or resets the stage (this is event 2). By using multiple event blocks you can control when different programs run and when creating a game, these different events help to create game controllers.

These blue blocks move your sprite in different directions and by different magnitudes. Sprites can move either by the number of steps taken in a specific direction or by using coordinates. There is a grid backdrop to help with selecting coordinates.

These blocks control the script and can make your program more efficient. You can pause the program using the WAIT block, repeat instructions using LOOPS, and make something happen if a condition is met by using conditional statements with boolean operators (green hexagon blocks).

The purple blocks allow you to add speech bubbles (words) to the stage, to switch the costume of the sprite or switch the backdrop, to change the size or colour of the sprite, and to hide the sprite.

The pink blocks allow you to add sound to your program. You can even record your own sound.

1. Change the cat sprite to a person sprite.

2. Change the backdrop from white to a field.

3. Create a program that makes the person move from left to right across the field. Each time the person should start on the left and move to the right. When the person stops, they say "Hi! I'm ..."

This program involves sequential events because the sprite moves forward and then says something. This coding concept is included in the grade 1 ON mathematics curriculum.