In recent years, SEC consistency analysis paradigm and Webb consistency analysis paradigm had been widely used in the analysis of curriculum standards and academic proficiency test, after-class exercises and so on. This paper found that both SEC and Webb had own advantages and weaknesses by studying the analysis program of the two consistency analysis paradigms. In order to make up for the lack of each consistency analysis paradigm, we should study the consistency in different ways and multi-dimensional analysis.

Using the concept map software CmapTools 5.05 as the tool, this paper used the indexes of content width, reading difficulty and knowledge partition to quantitative process 5 different versions of junior high school chemistry textbooks, and concluded that textbook published by Shanghai Education Press was biggest and that published by People's Education Press was smallest on the content width; textbook published by Science Press and Guangdong Education Publishing House was biggest and that published by Beijing Education Press and Popular Science Press was smallest on the reading difficulty; on the knowledge partition, textbook published by People's Education Press was biggest, textbook published by Beijing Education Press and Popular Science Press was bigger, and others were smallest. Comparing their concept maps, textbooks published by Shandong Education Press and Shanghai Education Press had a medium degree of similarity to that published by People's Education Press. These conclusions had a good reference value on evaluation and selection of textbooks.

Compared with teachers, the students had three problems in chemical problem solving: no-solving the problem with excess conditions, solving problem slowly within the prescribed time, no way to solve the comprehensive problem. This paper analyzed the main causes of these three problems from the perspective of cognitive psychology: there were differences between the stimulus and perception of the problem, the information arrangement, the distribution of resource and the way of knowledge organization in the cognitive process of students' and teachers' solving chemical problems. In order to reduce the gap between teachers and students, improve students' ability to solve chemical problems, teachers should pay attention to the change of students' thinking in the process of solving problem, and change teaching methods accordingly.

This paper selected oxidation reduction reaction as the research content, and used flow chart method to probe the cognitive structure of 30 senior high school students. Quantitative analysis of visual graphics and cognitive structure variables showed that: there was a large difference in the individual students' cognitive structures on oxidation reduction reaction; students' academic achievement, cognitive structure variables and information processing strategies were correlated each other, students with good grades scored higher on cognitive structure and tended to adopt a high level of information processing model in the process of knowledge construction and organization. This paper also found that most high school students had well established the concepts of gain or loss of electrons, ascending or descending of valence and so on in the learning of oxidation reduction reaction, but the understanding of the specific oxidation-reduction reactions was low respectively.

Taking the teaching of "solubility" as an example, this paper analyzed how to promote the development of students' cognition in the construction process of concepts. While teaching solubility，teachers should pay attention to students' pre-scientific knowledge, mined students' viewpoint and ideas, developed students' cognitive ways so as to cultivate students' ability of cognition.

Chemical symbols representation ability directly determined whether students could scientifically think or solve chemistry questions, reflected their chemistry learning levels. This paper developed levels of chemical symbols representation ability, and analyzed the chemical symbols representation ability of senior high school students using optimized measurement tool, the measurement tool had good validity and reliability. The results showed the differences of chemical symbols representation ability of students of different genders, grades and schools.

Using copper wire as electrode, sodium polyacrylate (a super absorbent polymer) and ammonia solution as electrolyte, this paper designed the electrolysis experiments. Experimental phenomena were clearly observed in the electrolysis process: the dissolution of anode copper, copper ion moving from the anode to the cathode and the precipitation of copper on the cathode. This experiment had advantages of manifesting the principle, simple, obvious phenomena, safe and green.

This paper used marine baby to prepare the salt bridge, and measured the corresponding voltage by a voltage sensor with handheld technology. Compared with agar salt bridge, the marine baby salt bridge was simple to make, good in electrical conductivity and reusable.

In order to improve the reaction experiment of ferrous powder and water vapor and find the best experimental program to achieve efficient classroom teaching, this paper compared water-absorbing materials, evaluated the experiment results, and optimized the design to obtain the best experimental program on the basis of other literatures: Using the crystal mud as the water-absorbing material to provide water vapor, and adding the water vapor condensation device.