Interesting theoretical mechanics design and production of teaching aids

Teaching aids plays a very important role in the classroom teaching. Interesting mechanical demonstration combined teaching is designed in this paper is the two Teaching aid to mechanics principle as the foundation and cleverly integrated into the fun. With the boat shaped Teaching aid demonstration of Celtic stone phenomenon; human form Teaching aid demonstration of rigid body equilibrium conversion, unstable equilibrium and met with the balance between. The production of simple, convenient demonstration teaching aid, and unique shape, appearance, and make the teaching more vivid, full of fun, convenient for teachers and students, has great practical value.