Lego teaching AIDS are commonly used in 9656, 9686, WEDO and EV3, but some of them, such as 9090, are also commonly used, but you can buy spare parts from Taobao to match them, which is relatively cheap, generally about 40 yuan per catty, but the first four models are not recommended to be matched at will, because these are the core of Lego education, and the core cannot be messed up.

EV3 will be discontinued in June, 20021year. Later, everyone could only use domestic products, and there was no choice. Even if you want to use genuine products, you will buy second-hand or stock products. Therefore, the domestic EV3 will be very popular in China in the past two years. Because EV3 is so widely used in China, all Lego institutions have EV3 courses. After eight years of precipitation, the courses are quite rich.