People are different in intelligence. Over the years, people have tried to explore a scale similar to a ruler or ruler to measure a person's intelligence. This process is full of twists and turns. It was not until 19 1 1 that Bina cooperated with Simon of France and founded the intelligence scale after years of exploration that this problem was initially solved. Later, after many people's revision and practice, psychologists put forward a more quantitative measure of intelligence-IQ, which is IQ. Its calculation formula is: "intellectual age divided by actual age, and then multiplied by 100. (IQ = intellectual age ÷ actual age×100). Generally speaking, an IQ greater than 140 is considered a genius and a child prodigy; 120 ~ 140 is the best intelligence; 1 10 ~ 120 Excellent intelligence; 90 ~ 100 is normal intelligence; 70 ~ 90 are mild mental retardation; 50 ~ 70 is stupid; 25 ~ 50 is stupid; Everyone under 25 is an idiot.

The specific calculation method is as follows. First, calculate the actual age of the object. Generally, it is calculated on a monthly basis, including the day of the exam. More than 15 days (including 15 days) is counted as one month, and less than 15 days is not counted. If the child is 4 years and 3 months old, then his actual age is 4× 12+3 = 5 1 month. Then calculate the intellectual age. Here we need to use the intelligence scale to test. Generally, there are 6 questions in each age group, and each question represents the intellectual age of 2 months. The calculation method is as follows: If an actual 5-year-old child completely passes the questions in the 5-year-old group, then all the questions in the group under 5 years old are counted as passed, and there is no need to retest. Then test the questions of the 6-year-old group and above. If you pass 5 questions in the 6-year-old group and 4 questions in the 7-year-old group; All the questions in the 8-year-old group failed, so all the questions in the 8-year-old group and above failed. The intellectual age of this child is 5× 12+5× 2+2× 4 = 78 months. According to the calculated intellectual age and actual age, the IQ of this child is 78÷60× 100= 130. Note that in some tests, the number of questions for each age is different, so the age of each test representative is 12 divided by the number of questions. If a 3-year-old group has only 4 questions, then each question represents the intellectual age of 3 months.

As a measure of a person's intelligence, intelligence test can really provide a basis for teaching students in accordance with their aptitude. However, we should also pay attention to the fact that childhood is a period of vigorous growth and development, and we should treat intelligence tests correctly. Authoritative questions should be selected and tested by professionals. The test should focus on the child's reaction process, not the right or wrong answer. The results of intelligence tests should be analyzed and compared timely and accurately in order to find out the advantages and disadvantages of children's development and foster strengths and avoid weaknesses in education. In addition, childhood is a period of growth and development, and the possibility of development is immeasurable. Test results should not be used as the only indicator of long-term development prediction. Look at the problem from a developmental perspective and have confidence in the development of children.