short a smart board activities.Through the learning and application of the electronic whiteboard, I understand that the interactive whiteboard is an emerging multimedia teaching device. It has the following teaching features: two integrations (computer technology as the core of the information technology itself, deep integration, electronic interactive whiteboard Organic integration with classroom teaching), multiple interactions (including human-computer interaction, human-to-human interaction, resource-resource interaction based on teaching applications, etc.), easy to learn and use. These characteristics have realized a new fusion mode of information technology and subject teaching, which has brought about changes in the way teaching content is presented, and also brought about changes in classroom teaching methods.??The electronic whiteboard is a new thing, and there are not many experiences that can be used for reference. I have tried to find out some common functions in the usual teaching :??I. Screen annotations, timely feedback??based on the interactive whiteboard to provide convenient writing and drawing functions. Applied to the language subject, students can realize the way of thinking while thinking and painting, presenting the learning process and final thinking results of students' reading and thinking; applying mathematics can present the results of students' practice and thinking, which is convenient for teachers to discover in time. Problems, timely evaluation.??For example, in the classroom, the teacher uses the electronic whiteboard to present the electronic version of the text first. In the process of explaining the explanation, the screen annotation function of the electronic whiteboard is used to add some annotations of key words in real time (underline, emphasis, circle, etc.) Use the electronic whiteboard to create a learning environment where students interact and interact with teachers and students. Communicate the results of the annotations in the interaction, and clarify the method connotation in the teacher feedback. Throughout the process, students are the main body of learning, and the independence and profoundness of students' thinking are improved in independent annotations and interactive discussions.??Second, occlusion hidden, batch presentation??Based on the occlusion and pull screen function provided by the interactive whiteboard, you can pour the image as the theme background, which is conducive to the initiation scenario. According to the progress of the study, resources can be presented in batches, which not only helps students to concentrate, but also effectively guides students' thinking development. It is not only practical in the new lectures, but also very useful in the usual practice and review classes.??Third, drag and drop combination, flexible interaction