Lesson 4: Original Bridge Design
《第四课:原始桥梁设计》

With a basic understanding of different design concepts, students will need to evaluate the pros and cons of each design concept as they create their own original bridge design. These designs may be based on existing designs or may combine different aspects of multiple standard truss designs to create an entirely new design that could be built and tested in the real world.

有了对不同设计概念的基本了解，学生将需要评估每个设计概念的利弊，因为他们创建了自己的原创桥梁设计。这些设计可以基于现有的设计，也可以结合多个标准桁架设计的不同方面来创建一个全新的设计，可以在现实世界中建造和测试。