The essence of the deep integration of information technology and subject teaching is to change the way of teaching and learning with information technology. With the help of the characteristics of information technology, such as multiple interactions, mobile phone on the same screen, data analysis and instant feedback, teachers and students can effectively break through the bottleneck of traditional classroom review, realize the reconstruction of classroom concept, teaching structure and teaching behavior, and give birth to a new classroom teaching model.

The second round of review is the key stage of preparing for the third year of senior high school, which undertakes the important tasks of building knowledge network, developing subject thinking and cultivating core literacy.

The second round of review plays an important role in cultivating and improving students' historical ability. However, there are also some difficulties in the second round of review, such as unclear review objectives, difficult implementation of in-depth teaching and low teaching efficiency.

In recent years, interactive electronic whiteboard and mobile learning terminal have been widely used in classroom teaching, realizing "teaching decision-making data, instant evaluation feedback, three-dimensional communication and interaction, and intelligent resource push"