1. Keep the roll surface flat to facilitate smooth writing. The backing board is used to place under the examination paper when writing. It can prevent the paper from being damaged by excessive force when writing. It can also prevent the table top from being uneven and the test paper to be damaged when writing hard. On a flat pad, you can increase your writing speed and answer questions faster.
2. Copy function. In the past, for the college entrance examination, many provinces could only issue test scores after applying for the college entrance examination. In this case, the exam needs to be scored. At that time, a backing board with a copy function came into being.
During the exam, place the pad under the test paper. When writing, the pad will reflect the written content. After the exam, you can calculate your score by comparing it with the standard answers using the pad with the words reflected on it.
Extended information
Multiple uses of exam pads:
1. Exam pads are a must-have item for almost every middle school student. After middle school, the exam mat can also be used as a small and lightweight cutting board for cutting fruits and vegetables, playing an important role in university dormitory life.
2. The exam mat is a lightweight plastic that can be cut into small strips of appropriate length (according to personal preference). A label is attached to one end, which can be used as a bookmark. The label can also be anti-slip.