Skip to content

Please update your browser

Your browser version is not supported by this site. CS First may not work properly. Learn more


In this add-on, you will add an object related to the story.

This is a challenge add-on.

This video will help you get started, then you will figure out the rest of the steps on your own.

To get started, decide what kind of object to use in your project.

Use an object from the sprite library, upload an image from your computer, or draw your own.

This example uses a peanut butter and jelly sandwich.

Next, broadcast a message to tell the prop to appear.

In this example, the message is broadcast from the Isabel talk sprite when Isabel says that they are having peanut butter and jelly sandwiches.

Click the flag to test.


Animate the prop when it receives the message to appear.

In this example, when the peanut butter and jelly sandwich sprite receives the message “pbj,” it shows, then repeatedly turns back and forth before disappearing.

Make the sprite do whatever you'd like.

To make the sprite hide until it receives the broadcast message, add "when flag clicked" and "hide" blocks.

Now, it's your turn: Add an object related to your story.

Broadcast a message to make the object appear.

Program the object to receive that message, show, then animate.

Choose an Add-On
Use the editing tools to draw your own expression or edit the appearance of the sprite.
In "Chatterbox," add a sound that plays each time a character speaks.
Add moving eyebrows to your sprites' expressions.
Add another character to your story.
Add an object related to the story.
Ask the Audience
As the user a question and react to the response.
arrow_backward Back
Next arrow_forward
  1. Watch the video to preview the add-ons.
  2. Choose an add-on, and click "watch" to learn how to build it.
  3. After you finish, come back to this page and try another one!