Children Software Video Tutorial

I would like to create professional e-tutorial for the website for children age from 3 to 10 years of age. Those tutorial should be describing the activities of any learning software or game. The video should contain a primary research about the purpose of software/game with clear objective. It should not contain any logo or any other type marketing material. The video can be dubbed with either male or female voice. The movie length should be between 4-5 minutes. For example a movie can describe the Microsoft Paint's mostly features. In start I need 10 movies to establish a good relation with the worker. Let me know, if someone has done some previous work on similar ideas.