There has been the research result enunciation: The student's attitude to mathematics study not only directly influence mathematics study behavior, but also affects mathematics study score and students' characters directly and the formation of the personality and development.

Under the new course principle of the mathematics teaching practices, teachers should urge students to learn vividly, positively and validly, to help junior students exalt mathematics study score, and have to help students to form the positive mathematics study attitude and change the negative mathematics study attitude.

63.51% school children think that the obesity will affect to make friend,49.6% think would be laughed by the classmates,but having no detection to the study score descends.

The result showed that after 1 and 2 years of additional iodine intake,there was significant difference of goiter rate, study score, physical score and urine iodine value between the experiment group and control group, the urine iodine value of 0. 4g group was higher than that of 0. 2g group obviously. The goiter rate result showed oppositely.

In teaching, we should change the study score of students' from over knowledge teaching and accumulation into knowledge investigating so as to train their abilities of scientific investigation, realistic approach and spirit of scientific exploration.

With the help of the statistical software SPSS 11.0 for windows, the analyses of the data indicate that:(1) The freshmen investigated in this study score the lowest on acquisition beliefs and value practice belief highly.

The research was about the measure to provide additional iodine by giving different dosage of iodine pills to the group of people who were 7￣9 years old students in iodine deficiency areas,observing the goiter rate,study score,physical score and urine iodine.

The study score of all investigations ranged from 20.5 (97.6%) to 9.0 (42.9%) points.

The study score of each paper resulted from the sum of all specified criteria.

It is then combined with your end of year exam to calculate your study score.

By means of the atom-absorbing spectroanalysis method, several microelements (such as copper, iron, zinc, and manganese) in 84 normal children's hair and 49 dull normal chldren's hair have been measured in Kunming, Based on the measurement data, this paper calculates the microelement mean of the male and female children's hair, studies the difference between dull normal children and normal children, and explores the relation between several microelements and average student's scores. The measurement...

By means of the atom-absorbing spectroanalysis method, several microelements (such as copper, iron, zinc, and manganese) in 84 normal children's hair and 49 dull normal chldren's hair have been measured in Kunming, Based on the measurement data, this paper calculates the microelement mean of the male and female children's hair, studies the difference between dull normal children and normal children, and explores the relation between several microelements and average student's scores. The measurement results show that the difference between the quantity of copper in hair and child's sex is not obivous, but the difference between the quantity of iron and zinc and child's sex is very great. Compared with normal children, the quantity of copper in dull normal children's hair is slightly low, and the quantity of iron and zinc is not obviously diferent, the research result shows that the quantity of copper in normal child's hair has obviously positive correlation with their studying scores.

The third round test of PECI (Programmed Enlightening Chemistry Instruction) is a comprehensive instruction which apply the teaching material of PECI and combine the students teach-themselves under the guidance of teachers with students reading the teaching material, doing experiments and exercises, having discussions and teachers instructing, feedbacking. The results indicate that it's much more effective to heighten students study scores, develope abilities of students teach-themselves and stimulate...

The third round test of PECI (Programmed Enlightening Chemistry Instruction) is a comprehensive instruction which apply the teaching material of PECI and combine the students teach-themselves under the guidance of teachers with students reading the teaching material, doing experiments and exercises, having discussions and teachers instructing, feedbacking. The results indicate that it's much more effective to heighten students study scores, develope abilities of students teach-themselves and stimulate their study interest in the test group than that in the contrast group, and therefore it has been proved that the teaching material and ordinary ones in advanced area.

In a study of 8,000 pupils and students at Nanning, fifty cartes were found to have a height of X—2S comparing with those of the same age and sex. The ratio was 0.63%. General physical check-up, secondary sexual characteristics, history of birth condition were taken. The Zinc values in hair and its levels in serum and serum human growth hormone were measured. Hand-wrist X-rays were taken. Seventeen out of 49 cases were familial short stature(FSS), three cases were constitutional growth delay, (CGD), 28...

In a study of 8,000 pupils and students at Nanning, fifty cartes were found to have a height of X—2S comparing with those of the same age and sex. The ratio was 0.63%. General physical check-up, secondary sexual characteristics, history of birth condition were taken. The Zinc values in hair and its levels in serum and serum human growth hormone were measured. Hand-wrist X-rays were taken. Seventeen out of 49 cases were familial short stature(FSS), three cases were constitutional growth delay, (CGD), 28 cases were normal late children and one case of 12 years old boy was dysplasia and needs futher diagnosis and treatment. The skeletal age(SA) of most FSS was not more than ±1 year by comparision with chronologic age; The SA of CGD was less than-2 years; the normal late children in SA from ±3to ±18 months, Intelligencl of each case was evaluated with study scores, most levels of intelligencl were middle, levels of Growth hormone were within normal range, the mean of Zinc value was 123 ppm, 10 cases were lower than 100 ppm. They were given Zinc treatment. After one year, with exception of two cases of FSS, the height of the rest reached to (?)—2S, one FSS case had evidence of sexual development after the student had been given hormore.