“一线一等边三等角”全等模型之我见

“代数繁,几何难”。几何题入门难,证明题难做,是许多学生在学习中的共识,这里面有很多因素,有主观的、也有客观的,学习不得法,没有适当的解题思路则是其中的一个重要原因。掌握证明题的一般思路、探讨证题过程中的数学思维、总结证题的基本规律是求解几何证明题的关键。

提炼几何模型,强化思维训练——从一道教材习题谈起

几何是初中数学的重难点,是学生普遍存在学习困难之处,因此几何教学显得格外重要.本文通过对教材的深入探究,提炼几何模型,采用模型解题法提升学生的解题效率,强化学生的思维.

Investigation of Ionosphere TEC Distribution in China Region by GIM Model

In this paper, the TEC in China region is calculated by final GIM model and plotted as contour maps, the TEC value calculated from dual frequency GPS measurements(carrier-phase and pseudorange) is used as the reference truth and the TEC values from GIM models are then compared with the reference truth, and the accuracy and performance of GIM model in China region are analyzed and concluded.

Viscosity and Jet Quenching from a Holographic Model

We consider the backreaction of the fundamental flavor degrees of freedom on the A dSs-Schwarz background, and calculate their contributions to the shear viscosity and jet-quenching parameter of the thermal quark-gluon plasma.