In first chapter of this series, you will learn all you need to know to start using controls. Each exercise includes an introduction, a task for you to complete, and - in the gray sandbox area to the right - some pre-built controls that you have to improve. As soon as you finish your tasks, the "Next" button will automatically appear to take you to the subsequent challenge.
To start learning, open the attached file in PowerApps (Windows app is recommended for best experience). You can use comments area in this blog post to show your picture from exercise 10!