The function of QR code in education and teaching is mainly to make interactive teaching more convenient; Make full use of teaching resources; Expand students' personalized learning space.

First, make interactive teaching more convenient.

1. In the process of interactive teaching, teachers can make text, pictures, videos and other information about the key and difficult points of this lesson into two-dimensional codes embedded in multimedia teaching courseware, or distribute them to students through QQ, WeChat and other platforms before class. Students get it by scanning the QR code on their smartphones.

2. Students can independently study and think about the teaching content according to the problems, thus deepening the grasp of the key points and difficulties of this class. For some questions that students don't understand, students can consult their teachers through on-site consultation or chat tools, so that the problems can be solved quickly.

Second, make full use of teaching resources.

1. With the help of QR code technology, not only teaching resources can be distributed, but also classroom detection, data collection, processing and analysis can be carried out to realize the accurate application of big data. Teachers can put micro-lesson videos and other teaching materials on Baidu Cloud and other resource platforms to make QR code links.

2. Students can log on to the learning resource platform by scanning the QR code to download materials and consult digital audio-visual works and e-books. Through such effective resource integration, students' knowledge can be expanded.

Third, expand the space for students' personalized learning.

1. Students can store all kinds of suitable electronic materials in Baidu Cloud and other resource libraries and study according to their reading interests.

2. The micro-lesson video produced by the teacher is to explain a specific knowledge point in detail, and the duration is generally controlled at 5- 10 minutes. Students can use smart phones to study selectively according to their personal situation when there is a network, and truly realize fragmented learning anytime and anywhere. So as to provide personalized autonomous learning space, and ultimately improve the convenience of students' learning.