This video tutorial will help you learn about the animation in App Inventor by making a Ball (a sprite) bounce around on the screen (on a Canvas):
For a detailed explanation, click here.
The following tutorial, we will show you how to create a drawing app on MIT app inventor. The tutorial will help doodle on the screen as you drag your fingers around.
For a detailed explanation, click here,
To dive deep into the app creation facilities provided by MIT App inventor, click here.