【คลาสเวิร์คช็อป】[Online] Double trebuchet unit children play at home in summer vacation and learn hand-made with online course materials and tools

Every time your children see the TV screens and use the trebuchet to siege the spectacular scenes, they always watch intently and discuss with you in high spirits? In fact, the trebuchet is the most close hands-on practice for children with physical science and mechanical design. Whether it is a chopsticks spoon or a popsicle stick rubber band, you can easily make a fun trebuchet. Does the child know that there are many types of trebuchets that are related to history and geography? This time, let us take our children on the time machine and return to the historical battle site. Learn from the history, scientific principles and mechanical design principles of the catapult, and make two different designs of the ancient wisdom "torque catapult" and "Gravity trebuchet"! ｜Learning Box Online Course｜ It is a professional online course teaching + Learning Box teaching aid box =Online knowledge learning + offline hands-on practice It is not only a fun toy hand made for children to prevent epidemics at home and relieve boredom, but also for children to cultivate learning methods by doing middle school. **Cute illustration design and packaging, so children can't put it down, it is also very suitable for gifts** https://live.staticflickr.com/65535/51255311524_96d4a1d196_b.jpg **Comes with a complete wooden hand-made tool set, so that children can learn and use tools safely** **It is recommended to keep the exquisite paper box as a habit of learning storage tools for children.** **The designer personally teaches, so that children not only hand-made, but also learn knowledge** https://live.staticflickr.com/65535/51221254239_e1a4c0b370_b.jpg https://live.staticflickr.com/65535/51220487846_538eeef2b8_b.jpg ｜Learning Box shipping process｜ 1. It takes 3 working days for material production. Due to the uncertainty of the recent epidemic, the time of receipt is still based on actual logistics arrangements. 2. All Learning Boxes will be sent by the post office. Please confirm that the recipient address and phone number are correct. 3. Precautions for return and exchange: After unpacking and assembly, the part that cannot be returned or exchanged, please forgive me. (Except for faults due to product defects) ｜Explanation of the contents of the Learning Box of the Double Catapult Unit｜ 1. Online course registration card 2. Torque Catapult Parts Set 3. Gravity trebuchet parts set 4. Comes with a hand-made tool set (can be reused for other hand-made) ・Gavel ・Woodworking glue (the second generation of safe and non-toxic glue imported from the United States) ・Woodworking sandpaper ·Candle 4. Wooden ball for launch x12 5. Castle Target x6 6. The size of the Learning Box is 30 cm long x 22 cm wide x 5.5 cm high ｜Design Information｜ ・Material: Wood (Basswood) ・Dimensions: Torque catapult width 18 cm x 22 height cm, Gravity catapult width 22 cm x 35 height cm ・Designer: Designed by Fun-Maker, design by Mac in 2019.