So, Piaget viewed the child as a scientist who developed this understanding, these schemas, these little miniature theories of the world.

皮亚杰将儿童视为科学家,认为儿童能够形成关于世界的,一系列看法,图示,或者说小型理论

耶鲁公开课 - 心理学导论课程节选

And then finally, at around age twelve, you could get abstract and scientific reasoning.

最后,大约在十二岁的时候,儿童的抽象推理和科学推理能力得以完善

耶鲁公开课 - 心理学导论课程节选