This screencast will explain the add-ons that you can choose to customize your program.

To get started, click on one of the add-on choices after you watch this screencast.

Twirl Pattern shows how to make a neat pattern with stamps.

(upbeat music)

Bouncing and Talking creates a sprite that bounces around the screen and speaks when it hits other sprites.

Say Stuff From an Array causes the sprite to say lots of different randomly chosen things.

Take some time to explore the add-ons that interest you.

If you wanna continue to create and build after today's club is over, you can access Scratch and CS First from any computer.

Remember, have fun creating, customizing and making this project your own.

Choose an Add-On

Twirl Pattern

In this add-on, you will program a pattern.

Bouncing and Talking

In this add-on, you will add a sprite that bounces across the screen and speaks when something happens to it.

Flashing Text

In this add-on, you will add flashing text to your project.

Say Stuff from an Array

In this add-on, you will have your Sprite say stuff from a list (Remember: In computer science, we sometimes call a list, an array).


  1. Choose an Add-On, and click "watch" to learn how to build it.
  2. Once you finish one Add-On, try another one below the video!
  • The song “Festival” is © YouTube-- CC-BY-SA 4.0 does not apply.
  • "The First Moon Landing" by Llyr111 ( -- Licensed under CC BY-SA 2.0 (
  • "UTC - FIRST Robotics Competition (13571310653)" by Barbara Bresnahan ( -- Licensed by Creative Commons Attribution 2.0 (