[Interesting ancient lock] Wooden house sorting money box | Change sorting and self-painted STEAM teaching aids

**Do you know where the “lock” that you use every day comes from?** ★Professor Huang Qinfei from Normal University of China provides brainwave research and guidance on Brain-STEAM research and development ★Recommended by more than 100 primary and secondary school teachers https://live.staticflickr.com/65535/51376178085_f04ecc5997_h.jpg Let us take you across the gap of time and explore the world of ancient locks of Yangshao culture. At the same time, it is not only a wooden lock, but also a super interesting coin classification piggy bank! The wood design with excellent hand feel is used to reproduce the ancient wooden lock mechanism principle passed down from the Yangshao culture. While you are assembling it, you can think about how the ancients discovered and solved problems thousands of years ago, inspiring you and your children to Imagination of scientific concepts. Each part has been professionally deconstructed by engineers, replacing the ancient heavy lock bolts with tension springs to replace the weight, ensuring the highest level of assembly tightness and comfort. At the same time, the function of sorting money boxes is added, allowing children to observe how the inserted coins fall into the correct position according to the size of the hole due to the several degrees and acceleration generated by the inclined planes with different angles after unlocking the door. With the included painting set, children can also create their dreamiest piggy bank colors! **｜Little knowledge about Yangshao culture｜** Wooden locks were the earliest locks in ancient China. Most of the locks used in modern times are the gradual evolution of ancient wooden locks. The basic structure is simple. It is a hole in the door that allows tools such as bamboo poles or wood to enter from the outside, so that the wood can be activated inside the door. Bolt and open the door. It is said that in the Yangshao culture from 5000 BC to 3000 BC, people at that time had used wood to make ancient locks, but no authentic products have survived. **➤ Product details** Difficulty level: ★★☆ (five stars is the highest) Assembly time: about 1.5~2 hours Recommended age: 6 years and above Also included in the package: graphic assembly instructions Product size: 17cm྾11cm྾24cm Packing size: 30cm྾23cm྾3.5cm Material: non-toxic wood Origin: Taiwan **➤ Precautions** • Please use the supplied sandpaper to polish the wooden parts before assembling. Also, be careful about small parts being swallowed by children. • No need to use glue, just install the parts in the correct position and clamp according to the instructions, and confirm the tightness of the assembly of the parts to ensure that the model can be used normally after assembly. • If there are missing parts or other assembly questions, please contact the design studio. • This design museum has a seven-day appreciation period. The appreciation period does not equal assembly and trial use. If there is any assembly, it will affect your return and exchange rights. • When returning or exchanging goods, please keep the outer packaging intact and return related gifts and contents together. Returns will not be accepted if the goods are damaged or have been assembled. **▲ There are discounts for large-volume purchases by educational institutions. Click "Contact Design Center" and a dedicated person will contact you.**