1 Computer teacher : Worood Al Ali

Scratch is a block-based visual programming language and

online community targeted primarily at children. Users of the site

can create online projects using a block-like interface.

Revision sheet for ongoing exam term2

Grade 6

2 Computer teacher : Worood Al Ali

The Scratch Interface

A

Stage

B

Scripts Area

C

Presentation Mode

D

Blocks palette

E

Tool Bar

F

Spire list

G

Tabs

3 Computer teacher : Worood Al Ali

Change the Sprite

• Every time when we open SCRATCH program the Sprite will be the cat .

• I can change it and add more than one sprite from here .

4 Computer teacher : Worood Al Ali

Run the program

• Go to the “ Events ” blocks palette:

• Choose “ the green flag “ block .

Add a Background In the lower left corner of the screen, choose the Stage.

Click on “Add background from file” icon:

5 Computer teacher : Worood Al Ali

The Backdrop Library appears

6 Computer teacher : Worood Al Ali

First Program: Hello World • We’re going to make the cat say hello

• Go to the ‘Looks’ blocks palette and drag the “Say Hello! For 2 secs” block on to the script

area:

We’re going to make the cat say a few more things.

• Drag and drop another “Say Hello! For 2 secs” block on to the script area.

• Change the text to say ‘My name is …’

7 Computer teacher : Worood Al Ali

• Drag and drop another “Say Hello! For 2 secs” block on to the script area.

• Change the text to say ‘I can run fast!’

Your project should like this:

Putting Sentences Together • Interlock each block together.

• Double-click and see what happens

• A bunch of blocks locked together is known as a script.

8 Computer teacher : Worood Al Ali

• Your First Script • The computer needs scripts to tell it exactly what to do. • The computer starts at the top of a script and runs each block in the order that they appear.

Talking With Waiting • Go to the ‘Control’ blocks palette and drag out a “ wait block”.

• Wrap it between the speech blocks. click the flag block and see what happen.

9 Computer teacher : Worood Al Ali

Move the Sprite

• We’re going to make the cat move

• Go to the ‘ Motion ’ blocks palette and drag the “ Move 10 steps ” block on to the script

Area.

• Drag and drop another “ Move 10 steps ” block on to the script area. • Double click on the block and see what happen .

10 Computer teacher : Worood Al Ali

Drawing a shape

• We are going to draw a shape • First things you have to know:

1- which shape you going to draw 2- Number of sides 3- The angles degree

• Open Scratch program • Go to ‘ Events ‘ blocks palette and drag the “ flag block on script area . • Drag and drop “ Hide ” block on to the script area. • Drag and drop “ clear “ or “ erase all ” block on to the script area. • Drag and drop “ repeat ” block on to the script area. • Drag and drop “ pen down ” block inside the repeat block on to the script

area. • Drag and drop block inside the repeat block on to

the script area. • Drag and drop block inside the repeat block on to

the script area.

Enter The number of sides

Enter Angle degree

Enter Length of the side

11 Computer teacher : Worood Al Ali

Square

Angle = 90 4 sides The Lengths of the sides are equal.

A rectangle

Angle =90 4 sides The Lengths of the sides are not equal.

Square

Angle = 90 4 sides The Lengths of the sides are equal.

Triangle

Angle = 120

Circle

Angle = 360

Pentagon:

Angle = 72