学具是教师和学生为了改进教学方法,就地取材,学生自己制作的成本低廉、贴近教学的器具。学具是教师针对教学中的重点、难点和急需解决的问题而设计、学生亲手制作的学习器具,具有很强的针对性和灵活性。学具不仅是实验器具的创新,而且常是实验内容的创新、实验方法的创新和实验手段的创新,整个过程蕴含丰富的创新思路,无不潜移默化地启迪着学生。尤其是学生通过自制的学具,更能加深对知识的深入理解,因为制作仪器的过程 Learning tools are teachers and students in order to improve teaching methods, local materials, students make their own low-cost, close to the teaching apparatus. Learning tools for teachers in teaching for the focus, difficulties and problems to be solved, students learn to make their own learning instruments, with strong pertinence and flexibility. Learning instruments not only is the innovation of experimental apparatus, but also often the experimental content innovation, experimental method innovation and experimental means innovation, the whole process contains a wealth of innovative ideas, all subtly inspired students. In particular, students can deepen their understanding of knowledge through self-made learning tools because the process of making instruments