2. inattention. They are often attracted by other sounds and colorful things, so they can't concentrate on their studies, which often shows that they can't concentrate on listening.
3. Mechanical memory is acceptable. This is the mental ability of mentally retarded children, and many things need to be considered before they can be learned. They rely on mechanical memory mechanics.
4. Weak language skills. Language problems are relatively large, 80% have language barriers, pronunciation difficulties, and only know a few very simple commands. Even if a few children with mild mental retardation can speak, they all speak very simple sentence patterns, which are poor in content and often cannot convey meaning, so parents need to try their best to guess.
From birth to 1 year, it is often difficult to find any problems. Only when the child can walk (13, 14 months) and speak a few words (1.5 years old) will parents doubt the child: Is there something wrong with his intelligence? Because children with normal intelligence also have some cases of late development, parents often take chances and hope that they will only "have children late" and catch up later.
But after a long time, their learning ability is poor, and abstract ability and mathematical concepts are difficult to learn, which shows up. At this stage, the problem gradually becomes obvious. Although seeing and listening are normal, their observation ability is poor, and they often turn a blind eye to the subtle characteristics or changes of things, but they don't listen. Generally speaking, Chinese has no major obstacles, and is articulate and able to express his simple ideas. Good mechanical memory, repeated learning content can be remembered for a long time, poor thinking ability, lack of logic, and difficult to learn mathematical concepts. Normal mood, some timid, some fierce, basically the same as normal children, lack of willpower, can not actively try to overcome difficulties. There is a simple view of right and wrong. After special education, they can learn simple skills, their knowledge can reach the level of grade five or six in primary school, and their numeracy ability can only reach the level of grade one or two.