Machine learning is a popular topic nowadays but it is seldom introduced in the formal curriculum.  In this lesson, I will discuss with the audiences what machine learning is and how it is used. I will also give daily examples of using machine learning. Audiences can base on their interests to build up their training models and put them in real-life applications. During the process of building up models, the factors that can apply the models will be discussed. In addition, audiences need to modify or adjust their models during testing and debugging in order to fit their applications. Finally, audiences can create their apps with a suitable machine learning model.