1. Scratch allows you to create and share your
own interactive stories, games, music, and art.
Tutorial by John McDonald
http://scratch.mit.edu/ http://scratch.mit.edu/users/jwmcdonald24
3. 1. Go to the Scratch website http://scratch.mit.edu/
2. Click the “Download Scratch” button.
3. Choose the appropriate version and download/run the
installation.
4. Fill out the form and click the “Sign up” button at the bottom of
the page.
6. 1. Open Scratch to a new program.
2. Right-click the cat sprite and select delete.
7. 1. Click File and choose “Save As…”
2. Give your project a name.
3. Type your name under “Project author:”.
4. Type any comments under “About this project:” and press “OK”.
9. 2
3
1
1. Select the Stage icon in the sprites section below the stage preview.
2. Click the “Backgrounds” tab in the center section.
3. Click the “Edit” button.
10. 1
2
This brings up the Paint Editor:
1. Select the paint bucket icon.
2. Fill the stage with black.
11. 3
1
2
1. Select the line icon.
2. Choose the white color.
3. Draw a centered vertical line.
4. Click “OK”.
13. 1
3
2
1. Select the circle button.
2. Make sure the fill button is selected.
3. Hold the shift key to constrain the sprite to a perfect circle as you draw.
14. 1
3
2
1. Select the paint bucket.
2. Change the color to white.
3. Fill the circle with white.
4. Press “OK”.
15. 1
2
1. Select the “Shrink Sprite” button above the stage preview.
2. Click the ball on the stage repeatedly until you are happy
with its size.
3. Right-click to deselect the “Shrink Sprite” button.
16. 1
3
2
1. Select the rectangle button.
2. Confirm the fill button is selected and black is the color.
3. Draw a thin, vertical rectangle.
17. 1
3
2
1. Select the paint bucket.
2. Change the color to white.
3. Fill the rectangle with white.
4. Click “OK”.
18. 1. Right-click the rectangle sprite and select “duplicate”.
2. Click the “Paint new sprite” icon above the sprite window.
19. 1 2
1. Select the text (T) button.
2. Click within the editor and type “You Win!”
3. Click “OK”.
20. 1 2
1. Click the “Paint new sprite” icon above the sprite window.
2. Select the text (T) button.
3. Click within the editor and type “You Lose…”
4. Click “OK”.
21. 2
1
1. Click on Sprite1 (the ball) in the sprite window.
2. Rename “Sprite1” to “ball”.
3. Repeat steps 1 & 2 for the rectangle sprites renaming them
“paddle1” and “paddle2” respectively.
22. 2
3
1
1. Click on Sprite4 (“You Win!”) in the sprite window.
2. Rename “Sprite4” to “win”.
3. Click the “Paint” button to the right of “New costume:”.
23. 2
1
3
1. Select the text (T) button.
2. Click within the editor, type “You Win!” and highlight the text.
3. Click the white color swatch to make the text white.
4. Click “OK”.
5. Repeat all the steps from the previous slide and this slide for
“Sprite5” (“You Lose…”).
24. 1
Drag all of the sprites to their proper locations on the stage
preview as shown above.
26. 2
3
1
1. Select the “ball” sprite in the sprite window.
2. Click the “Control” button in the top left window.
3. Drag the correct script blocks over into the script window.
27. 1. Snap the “if…else” block into
the “forever” block.
2. Snap the “if” block onto the
“wait 1 secs” block.
3. Confirm that you have the
correct control blocks for the
“ball” sprite.
1
2
28. 1 1. Click the “Motion” button in
the top left window.
2. Drag the correct script blocks
over into the script window.
3. Snap the correct blocks into
their proper place as shown.
2
3
29. 1. Click the “Operators” button
in the top left window.
2. Drag the correct script blocks
over into the script window.
1
2
35. 1. Click the “Variables”
button in the top left
1 window.
2. Click the “Make a
2 variable” button in the
window below the
script categories.
3. Name the variable
“speed” and click
“OK”.
3
36. 1. Uncheck the “speed” variable block.
2. Drag the correct script blocks over
into the script window.
1
2
2
37. That is pretty much it for the “ball”
sprite’s script blocks.
Confirm that you have the correct
blocks and that they are snapped in
the proper locations.
Next we will adjust the values of
the drop-downs and the text boxes.
38. Click the drop-down menu in the “touching __
?” sensor-type script block and select “paddle1”.
Repeat this step for the next “touching __ ?”
sensor-type script block and select “paddle2”.
Drag the “direction” script
block from the “Motion”
script list into the
multiplication operator-type
script block as shown.
39. Enter the following values into the
appropriate boxes:
1. 5
2. -90
1 3. -225 (confirm “x position” and “ball” are selected in
the drop-down list)
2 4. 225 (confirm “x position” and “ball” are selected in
3 4
the drop-down list)
5. -1
6. 5
7. -20
8. 20
9. 20
10. 0.5
5
6 7 8
9
10
40. 1
2
3
4
1. With “ball” still selected in the sprites list click on the
“Sounds” tab in the middle window.
2. Click the “Import” button to the right of “New sound:”
3. Open the “Effects” folder in the Import Sound window.
4. Select the “Pop” sound effect.
5. Click “OK”.
41. 1
1. Return to the “ball” sprite’s
“Scripts” tab.
2. Click the drop-down menu on
the purple sound-type script
block and choose “Pop”.
That completes the setup for the
“ball” sprite. Now let’s move on
to the paddles.
2
42. 2
1. Select the “paddle1” sprite in
the sprite window.
2. Drag the shown script blocks
into the “Scripts” window and
snap them appropriately as
you did with the “ball” sprite’s
script blocks.
43. 1. Select the “paddle2” sprite in the sprite window.
2. Drag the shown script blocks into the “Scripts” window
and snap them appropriately as you did with the “ball”
and “paddle1” sprites’ script blocks.
3 3 4
5
2 6
3 3 4 7
8
Enter the following values in the appropriate boxes:
3. Change “x position” to “y position” in all 4 drop-down lists.
4. Change “ball” to “paddle2” in the 2 right-most drop-down lists.
5. 3
6. -5
7. 3
8. 5
44. 1. Select the “win” sprite in the
sprite window.
2. Drag the shown script blocks
into the “Scripts” window and
snap them appropriately as
you did with the previous
3 sprites’ script blocks.
3. Enter 225 for the value in
both text boxes.
4. Note that the only difference
between these 2 block groups
is the top blocks.
2
3
45. 1. Select the “lose” sprite in the
sprite window.
2. Drag the shown script blocks
into the “Scripts” window and
snap them appropriately as
you did with the previous
3 sprites’ script blocks.
3. Enter -225 for the value in
both text boxes.
4. Note that the only difference
between these 2 block groups
is the top blocks.
2
3
46. 1. Click the green flag in the top
right corner of the stage
preview window to test your
game. You can also click the
1 “Full Screen” icon above the
red stop button to play in full
screen mode.
Sit back and enjoy your game. If
it isn’t working properly, go back
and verify that all of the script
blocks and their values match.
48. 1. To share your project online first click
on “Share” in the Scratch main menu
bar at the top, then select “Share This
Project Online…”
1 2. In the “Upload to Scratch Server”
window, select a tag(s) and feel free to
type in others that describe your
project.
3. Fill in your login name and password.
4. Click “OK”.
3
2
49. Your project should now be shared on the
Scratch website for others to enjoy and
remix.
50. Advantages:
• The Scratch website provides numerous tutorials covering
everything you can do, and the forums’ community is very
interactive and helpful.
• All shared projects can be downloaded revealing the code used.
• You can “remix” (modify) other members’ projects.
Disadvantages:
• You must provide a birthdate, email, and gender when creating an
account.
