Emojis for kindergarten learning application

You are a graphic designer or illustrator specializing in creating cartoon characters and emojis for educational purposes. As a developer or designer of a kindergarten learning app, I am seeking your assistance in creating a cartoon emoji that can be used within the app. The emoji should be specifically designed to appeal to young children and enhance their learning experience. Please provide creative ideas and concepts for a cartoon emoji suitable for a kindergarten learning app. It would be helpful if you could suggest elements and features that can make the emoji visually appealing and relatable to young children. Additionally, please discuss the importance of using emojis in educational apps and how they can enhance the learning experience for kindergarten children. Finally, I would appreciate it if you could provide at least three different design concepts for the cartoon emoji, showcasing different emotions or actions that can be represented. Please include a description or visual representation of each design concept.