Three -dimensional mathematics of economics teaching aid

• Main Author: ZHU XUEQI
• Format: Patent
• Language: Chinese; English
• Published: 05.12.2017
• Subjects: ADVERTISING; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE; CRYPTOGRAPHY; DIAGRAMS; DISPLAY; EDUCATION; EDUCATIONAL OR DEMONSTRATION APPLIANCES; GLOBES; PHYSICS; PLANETARIA; SEALS

The utility model discloses a three -dimensional mathematics of economics teaching aid, including fixed frame, strap, proportion dish, iron plate, tray and pull rod, iron plate is fixed all around on fixed frame, the proportion dish sets up in the iron plate upper left corner, be provided with the sector disk export on the proportion dish, strong practicability. The proportion is circled right and is fixed with the scale on the iron plate of side, scale bottom right side is provided with the strap export, the strap at iron plate back passes the strap export and fixes with the positive magnet piece of iron plate, the iron plate lower half is provided with the tray, the tray is provided with two, and fixes both ends about the sky arm beam of steelyard respectively, it arm beam of steelyard middle part is fixed with the pivot seat, the pivot seat rotates with the pole setting through the pivot to be connected, the pole setting bottom is fixed in fixed frame bottom, the iron plate bottom is provided with the weig