This paper introduced the composition and the general production process of a carrageenan/konjacmannan jelly, and focused on structures and functions of the main components:carrageenan and konjacmannan.

Under the guidance of learning progressions and based on the construction of knowledge levels and cognitive levels, taking the teaching design of metallic aluminum at three different learning sections in senior one as an example, this paper expounded the possibility of dominant construction and integrative design of scientific thinking in the learning of element compounds, attached great importance to scientific thinking levels in chemistry learning so that the essential connotation of learning progression could be realized and scientific literacy could be cultivated.

Through investigating the current situation of chemistry learning of senior one students in High School Attached to Guangxi Normal University for Nationalities, this paper put forward strategies to improve the learning status of minority students in frontier areas, and used these strategies to interfere with students and test its effectiveness. This study showed that:(1) students' chemistry achievement was linear with learning situation; (2) through targeted stage training, test scores of two classes were significant differences, and this training was necessary and effective.

This paper mainly analyzed the current research situation of Connell notes at home and abroad and its application in chemistry teaching, and put forward a specific operable mode of learning chemistry by using this note method.

In view of the fuzzy understanding existed in the teaching practice, this paper put forward to clarify three basic problems in scientific inquiry teaching, such as the definition, the value connotation and the level of scientific inquiry teaching, and promote inquiry teaching in chemistry classroom.

The key point of the teaching design of "chemical bond" was to arrange the teaching contents reasonably, to set good learning situation and to put forward challenging problems. This paper selected 9 high-quality classes of senior high school chemistry in 2014 in Jiangsu province, and made qualitative comparison from selection of teaching contents, situation setting and guidance of teaching process and so on.

In the teaching practice of heterogeneous forms for the same subject, the teaching design should follow students' cognitive developmental process and help them overcome the obstacles of cognition. More importantly, the design, implementation, evaluation and reflection of teaching could respectively answer the questions of "why to teach" "what to teach" "how to teach" "how well of the teaching" and "how to teach better", which clearly revealed and emphasized the nature of teaching.

With the development of computer networking technology, the developing and utilizing of network resources are attracting more and more attention. This paper used Flash, Fireworks and Dreamweaver 8 to construct integrable ware mobile chemistry classroom system including textbook reproduction, materials window, micro-course online video broadcasting, immediate exercise, web interactive platform. This system provides convenient electronic resources for high school chemistry daily teaching, micro-course, flipped classroom and the "Three Connective Channels and Two Platforms" educational resource public service platform put forward by Ministry of Education of China.

"Chemistry link" was a desktop game which was designed to turn the materials in the chemical reactions into cards with substances printed on or electronic buttons, and get scores by collecting cards or clicking on the buttons to illustrate the chemical reaction equations. This game was applied to chemistry teaching, updated teaching methods and changed the rote learning way.

Virtual experiment technology, using technologies of simulation, network, sensing, multidimensional animation to remedy limitations of dangerous, time-consuming, no obvious phenomena, and other problems in real experiments, especially played an irreplaceable role in the micro-show, reaction mechanism simulation, inflammable and explosive experiments teaching. This paper investigated the application situation of virtual experiment in chemistry experiment teaching on the basis of sampling survey, questionnaires and interviews, and verified the effects of virtual experiment through practical teaching case.

This paper introduced students' experiment inquiry of preparation of electrolysis chip of water based on STEM concept, and students could observe the volume ratio of H₂ and O₂ (2:1) in the lab-on-a-chip. This experiment was simple, safe and environment-friendly, and was suitable for students' independent operation. This study stimulated students' learning interests, and developed the innovation ability of students by setting scientific questions, emphasizing students inquiry and making students experience the whole process of scientific research.

By analyzing the shortcomings of experiment in senior high school chemistry textbook and the related literatures, this paper designed a set of experiment device for ethanol reacting with oxygen to produce acetaldehyde catalyzed by copper by using simple instruments, such as syringe, wash ear ball, test tube, and alcohol burner, and good results were achieved.

This paper analyzed the problems of experiment design of thermit reaction in the textbook, and improved the experiment device and ignition agent based on the concept of microscale experiment. This experiment used less reagents, was easy to success and green.

This paper used common water-rich vegetables such as tomatoes instead of wet cotton for the reaction of iron and water vapor. Through repeated experiments, this study found that the tomatoes provided water vapor continuously and steadily, and the improved experiment had obvious phenomena with simple device and better repeatability.

The mass of products from microscale chemistry experiment was few, thus this paper used oxygen sensor as a detector applying to the microscale chemistry experiment "preparation of oxygen from decomposition of hydrogen peroxide catalyzed by manganese dioxide", this method could further reduce the dosage of chemical reagents. The experiment results were displayed through curve in the computer, and the experimental phenomena were transformed to intuitive figure and image. The application of hand-held technology in this experiment could help students not only observe the experimental process simultaneously, but also deepen understanding of quantitative research and perceiving of the experimental phenomena.

Based on digital imaging principle and a mobile phone taking pictures of standard solutions, this paper determined the iron in iron supplements. This experiment was simple and quick with high accuracy. Digital imaging colorimetric method was recommended to high schools, not only could extend the range of quantitative experiments, but also could highlight the digital analysis technique in chemistry discipline. This method was suitable for senior high school students to carry out interest experiments.