A survey of 456 primary teachers who organized students to conduct selfassessment and peer assessment by icons in the Natural and Social subject in 11 provinces in the East and Southwest showed that: using icons in self-assessment and peer assessment is very necessary, brings convenience, saves time, and is suitable for assessment by comment in the Natural and Social subject according to the 2018 general education program. Teachers can use icons to support many different assessment tools by having students circle the available icons according to the instructions. However, in fact, teachers are facing many difficulties when using icons for students self-assessment and peer assessment in the Natural and Social subject, including: the icons do not show all the content expressed by students
lack of icons makes it easy for students to get bored with self-assessment and peer assessment
it takes time to find the right icons for students to self-assess or peer-assess and teachers do not know the appropriate source of exploitation.