The feature of facial change of learning style, superficial dialogue between teacher and student, and hypocritical teaching objectives of three-dimensional in new curriculum teaching practice led to a certain degree of surface leaning. Deep learning was a proactive, critical learning style, emphasized not only active learning, integration of learning contents, meaning connection, and analogical learning method but also students' higher order thinking and complex problem solving ability. Deep learning provided a feasible path to solve the problem of surface leaning. This paper expounded instructional design for deep learning from the aspects of teaching goal orientation, teaching content selection, teaching strategies, technical support and learning evaluation and so on.

This paper changed inclinations of the traditional teaching of elements which paid more attention to lecture than to students' learning process. A variety of teaching activities for element teaching let students have more chances to experience and understand the process of knowledge formation, and develop intelligence and ability in doing science.

This paper combined with the characteristics of chemical concepts and theories in high school chemistry, took "intermolecular forces and properties of matter" for example, explored how to organize teaching contents and provide learning scaffolding, used physical model to strengthen understanding of micro-structure and help students to understand the learning contents of microscopic abstract concepts and theories.

Two dimensional map integrated element valence, composition of matter particles and transformation between substances into one map. Teaching practice proved that construction of two-dimension map of elements could well connected the main knowledge of junior and senior high school chemistry, relieved teaching time pressure, promoted students' cognition development, realized the students' autonomous learning ability, expanded students' creative thinking, and prepared students for their lifelong development. The construction of "two dimensional map" provided a feasible teaching mode for the infiltration of core chemistry concepts.

On the basis of determining students' existing knowledge related to new knowledge, according to the relationship between the existing knowledge and new knowledge, the existing knowledge was presented by lecture, questions or exercises in the former, middle and later period of learning the new knowledge according to the difficulty and competence requirements of the existing knowledge and new knowledge, in order to lead students to think and promote the construction of new knowledge.

In order to optimize the teaching design of the properties of sulfur dioxide and improve teaching effect, from the life contexts, this paper carried out the experimental inquiry activities by using the microscale experiment apparatus and substitutes from life, guided students to understand the nature and characteristics of acidic oxides of sulfur dioxide and both oxidation and reduction, to construct a more complete knowledge system of sulfur dioxide. This paper also developed students' learning interests, environmental protection consciousness and dialectical materialism.

This paper discussed meaning of "cognitive development, emotional edify and spirit moisture" of chemical knowledge, and indicated that knowledge meaning was generated through the "communication" and "dialogue" between knowledge and practice, and was promoted through the correlation between teaching contents and students' cognitive structure in chemistry teaching. This paper also elaborated three effective strategies to promote the generation of knowledge meaning:strengthening the formation of knowledge structure in the question situations to realize the effective correlation between students' cognition and the meaning of knowledge; using the logic of life to integrate the knowledge logic, and to enrich chemical knowledge meaning; creating real situations to realize appreciation of chemical knowledge meaning.

The new curriculum emphasizes students' independent learning, to guide students to preview properly is an important way to stimulate students' active learning and cultivate the students' ability of thinking and self-study. This paper conducted a questionnaire survey on 254 students of Beijing's two demonstration senior high school, and the results showed that most of the students thought it was necessary to prepare lessons before class, but few had the habit of preview. In terms of elements and compounds, most of the students' preparation was mainly limited to record the difficulty, and was not able to use the chemistry thinking of "category-common properties-characteristics". In terms of concepts and principles, about half of the students used the conventional way of thinking to prepare, but few independently thought in the process of preparation. In terms of experiments, most of the students focused on the conventional questions involved in the experiment, but lacked design consciousness. Based on the results, this study put forward the corresponding teaching suggestions.

Future classroom supported by "StarC cloud integrated teaching platform" software system had been gradually applied to high school chemistry experiment teaching.This paper tried to apply the technology of "the cloud", "multi screen interactive technology" and "courseware making tools" in the "StarC cloud integration teaching platform" into the high school chemistry experiment teaching, and had achieved good teaching effect.

Because of the fact that dispersion system had a common phenomenon of light scattering, it was difficult to distinguish colloid from solution. According to this, a high-monochromatic and high-bright red laser was used for the light source, and the control experiment was done with a flashlight of white spotlight. It not only differentiated colloid from solution, but also eliminated the interference generated by absorbing red light from blue solution. Students could make full use of the Tyndall effect to distinguish colloid from solution by analyzing the condition of light scattering. In addition, the Tyndall effect experiment had been improved from three aspects, and eventually showed three improved experiments:doing the aerosol Tyndall effect experiments cleverly, using solid sol and establishing experimental box model to do the Tyndall effect experiments.These improved experiments had more advantages such as simple device, easy operation, obvious phenomenon, energy saving and environmental friendly and so on.

This paper confirmed that magnesium oxide could promote hydrolysis of Fe³⁺ to form ferric hydroxide colloid from the perspective of theory and experiment. The improved experiment could be carried out at room temperature without heating, had high success rate and obvious phenomena. It was very suitable for classroom demonstration experiment and students' independent experiment.

White phosphorus could react with oxygen under natural conditions because of its low ignition temperature, so the experiment was difficult to operate to study the combustion conditions of substance through the combustion of white phosphorus. This paper designed the experimental device which could control the flow rate of oxygen, solving the above operation problem, the experimental method was intuitive, simple and less risk, and students could easily derive the combustion conditions of substance.

Under the conditions of different voltage, pH, concentration, electrode materials etc, this paper did experiment inquiry on electrolysis of potassium dichromate solution, explained the different phenomena, and made the conclusions such as heavy chromium acid radical ion in cathode discharge, with graphite electrode could also make electrolytic treatment of waste water containing heavy chromium acid radical ion, etc.

This paper studied the teaching attribute of Holt Chemistry California Teacher's Edition, and found its characteristics:being consistent with the United States New York science education standards, learning situation was analyzed comprehensively and teaching goals were elaborated clearly, and etc. It provided references for preparation of senior high school chemistry teacher's book and instructional design in China.