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In order to adapt to the change of learning style and pay attention to inquiry learning in the new curriculum reform, a heuristic teaching model of life problems is proposed. The heuristic teaching model of life problems is mainly divided into three steps: putting forward physical problems in life, teachers’ guided learning and experimental demonstration. Through course practice, students who adopt the heuristic teaching mode of life problems have greatly improved their love for physics courses, and their practical ability is stronger. They can think independently, analyze and solve problems, find physical knowledge from life and explain it with physical theoretical knowledge, and have stronger application ability. At the same time, the results of students who adopt the heuristic teaching mode of life problems are greatly improved, which provides a feasible scheme for the curriculum reform and development of physics in junior middle school.

The emerging 3D-HEVC has achieved the highest coding efficiency but requires a very high computational complexity. To speed up the encoding process for the dependent texture views, we propose a fast CU depth range selection algorithm by jointly making use of the interview and temporal-spatial correlations. Firstly, adaptive correlation weights are proposed to predict coding unit(CU) depth range and skip some specific depth levels rarely used in independent view, the previous frame and neighboring CUs. Besides, a new early termination algorithm is proposed to further reduce the coding time. Experimental results demonstrate that the proposed method saves about 56% coding time on average compared to HTM with maintaining the similar video quality.