Unit 1 Introduction to

1
Unit 1 Introduction to

• Evangel College
• S.2 ICT

2
About

• What is ?
• Scratch is a programming language.
• We can use it to create our own interactive
  stories, animations, games, music, and art.

3
About

• What can we learn from ?
• We can learn important computational ideas.
• We can learn to think creatively.
• We can learn to reason systematically.

4
What is programming?

• Programming is the art of making a computer do
  what you want it to do.
• A computer program is simply a set of
  instructions to tell a computer how to perform a
  task.
• It is like a recipe a set of instructions to
  tell a cook how to make a dish.

5
Basic Ingredients of a Scratch project

• Scratch projects are made up of a stage and
  objects called sprites.

6
Stage and sprites

• The stage is where you see your stories, games
  and animations come to life.
• Sprites move and interact with one another on the
  stage.

7
Stage

• You can choose either View Mode (Small stage or
  large stage) or Presentation Mode to display the
  stage

y
x240, y180
x-240, y180
x
x0, y0
x-240, y-180
x240, y-180
8
Sprites

• You can create New sprites and find the sprites
  from the Sprite List

9
Current Sprite Info

• You can find the sprites name, position,
  direction, lock state, pen color and rotation
  style

10
Toolbar

• On using the Toolbar, you can make sprites larger
  or smaller
• You can also duplicate or delete sprites,
  costumes, sounds or scripts

11
Costume

• You can change how a sprite looks by giving it
  different costumes.
• You can make a sprite look like a person, a
  train, a butterfly or anything else.
• You can use any image as a costume.

12
Costumes

• To see different costumes of a sprite, choose the
  Costumes tab page

13
Costume

• You can change how a sprite looks by giving it a
  different costume.
• You can make a sprite look like a person, a
  train, a butterfly or anything else.
• You can use any image as a costume.

14
Blocks and scripts

• You can give instructions to a sprite, telling it
  to move, play music or react to other sprites.
• To command a sprite, you can snap together
  graphics blocks into stacks to form scripts.

15
Blocks Palette and Scripts Area
16
Blocks and Scripts

• Activity
• Find out different categories of blocks and do
  question 2 in work sheet 1

17
Start and Stop Your Program

• Click the Green Flag to start all scripts that
  have at the top.
• Red Stop Sign stops all scripts

18
Start and Stop Your Program

• Click the Green Flag to start all scripts that
  have at the top.
• Red Stop Sign stops all scripts

19
Sounds

• To see different sounds of a sprite, choose the
  Sounds tab page

20
web

• http//www.scratch.mit.edu

21
Scratch web

• What can we get from Scratch web?
• We can download Scratch installer, view tutorial
  videos, get support from the forums, share our
  projects

22
Scratch web

• Activity
• Explore Scratch web and do question 1 in work
  sheet 1

23
Try Your First Project!

• What are you waiting for?
• Try your first Scratch project
• Getting Started With Scratch