At present, there are basically two kinds of common handwriting boards, basic pressure-sensitive handwriting boards and professional pressure-sensitive handwriting boards. The basic pressure sensitivity is generally 1024 and 2048, and the parameters are low. As far as use is concerned, the handwriting restoration performance is slightly weak, which is not as good as professional pressure sensitivity.

1. Online course handwriting board realizes the function of original handwriting. For the handwriting board used in online teaching, the most important thing is to keep the original handwriting. Because reasoning calculus and writing demonstration are often involved in the teaching process, especially some content steps need to be written while talking.

2. Using the handwriting board can realize the interaction between teachers and students, and make the traditional classroom interaction continue in the online classroom.

3. The application ability of information technology is the core literacy of high-quality teachers in the new era. As a new information technology, the teaching handwriting board is applied to the classroom, which changes the form of the classroom and gradually transforms the classroom from a single textbook into an intelligent, networked and multimedia learning resource.

4. More and more teachers began to join the online teaching of online courses and micro-courses, and the demand for handwriting boards began to become diversified and differentiated. Some teachers need to record simple micro-lessons, and some teachers want to make more exquisite courseware, so the expansion function of the handwriting board is becoming more and more powerful. The multimedia function handwriting board enriches the content of online courses.