3.- FLOW CHARTS AND ITS STRUCTURES

A flow chart is a way to express an algorithm. There are 3 main type of structures.

1.- Secuential
2.- Decisión
3.- Iterative.

If the algorith is iterative it includes a decision. Moreover in a decision flowchart there is always a secuencial flowchart.

Therefore, we begin explain the secuencial flow chart.

1.- The symbols to start and end the algorithm

2.- Identificate the variables an its type and also the inicite value of them

3.- Very ofte the varibles can be stared using an input. In this case you need to use this symbol.

4.- Finally the process in the correct order.

5.- The result or output value.

If the structure has a decisión you need to use the symbol of decison. You must answer to the question in the decision symbol with a YES or NO. If the answer is YES continue the program and end it. If the answer is NO you can do somethig. If the program is iterative the answer NO conects with a part of your program.

ACTIVITIES

1.- Express the algorithm of the sprites of the cards that you have already practice in the activity.

2.- Identify its structure