Scratch is a program that allows children to create games and cartoons by combining different instructions to make characters move in various ways. It has categories of actions that can be used to control a cat character to walk or create a bouncing ball. The program provides opportunities for simulations of physics concepts and allows users to create more complex projects by drawing geometric forms and combining multiple instructions.

1. Education in today’s knowledge society
Practice 6: Constructivist software
Scratch is a program that is very useful to make games and cartoons for
children. You can use it to illustrate ideas about physic and dynamic for
example.
You have to play with the instructions given and combine it to make the
character chosen move. There are eight categories of actions:

2. To make the cat walk
I have to choose these actions:
This could be good for a race by different characters, I can put an scenery
and another animal.
Have to press there to choose scenery.

3. A BOUNCING BALL
I have to change my character for a ball instead of a cat, following the
instructions we’ll try to make the ball bounce.
This way, you’ll get a ball bouncing from a way to another in the screen.
Giving other instructions, as painting and as bouncing in other directions, we
can get a ball bouncing and drawing lines as fast as we want.
Can also draw geometric forms:

4. There are many simulators that acts as this program with many complex codes
that allows you to make many things, here there are some examples:
http://phet.colorado.edu/en/simulation/eating-and-exercise
http://www.realrailway.com/en/sotetsu/simulator.html