1. Scratch Programming Lesson 3 Create a story

2. We are going to learn… How to change the background How to use the “say” and “think” bubbles How to change the costumes How to show and hide an object

3. Change background More than one backgrounds can be inserted You can either import a picture or draw a picture for your background

4. Change background Assign different background under different condition

5. Say / Think Bubbles The say/think bubble will appear forever Remove the bubble by using a “null” say/think bubble command The say/think bubble will appear in the length of time indicated (i.e. 2 sec here) Insert anything you want to show in the say/think bubble of the sprite in the rectangular box

6. How to change costumes The check box is clicked, the given number of costume will be shown liked those x, y co- ordinates Costumes are required to be imported to the sprite before calling it out.

7. How to show/hide object When “SHOW” command is used, the hidden sprite will be shown. When “HIDE” command is used, the sprite will be hidden

8. Timing functions How to use? For example, Assign the time gap between two commands Timer is for observing how long the program run

9. Task of the lesson Create a two-character conversation Start the conversation with the green flag Assign a background for the stage ▫change at least once throughout the conversation Each character at least has 2 “say bubble” and 1 “think bubble” The “think bubble” has to stop for 3 seconds and then disappear One changing costume MUST be shown in either character One character will disappear after the conversation Save as Program3_3_ _ _ and upload to eclass