Opening ScratchJr is straightforward once the app is installed on your device. Here's how to do it on common platforms:

• On an iPad or iPhone:

  Locate the ScratchJr app icon on your device's home screen or within the App Library (swipe left on your home screen until you reach the App Library, then search or find it in a category). Tap the icon to launch the application.

• On an Android Tablet or Phone:

  Find the ScratchJr app icon on your device's home screen or within the app drawer (usually accessed by swiping up from the bottom of the home screen or tapping an icon that looks like a grid of dots). Tap the icon to open ScratchJr.

• On a Chromebook:

  Click on the Launcher icon (often a circle) in the bottom-left corner of your screen to open the app launcher. Find and click the ScratchJr icon to start the application.

Important Note: If you don't see the ScratchJr icon, it might not be installed on your device. You can download it for free from the Apple App Store (for iOS/iPadOS), Google Play Store (for Android), or the Chrome Web Store (for Chromebooks).

For more information, you can visit the official ScratchJr website:

• scratchjr.org