10.7
Piaget's third stage of cognitive development, the concrete operational stage, lasts from 7 to 11 years of age. In this stage, children develop logical thinking skills related to concrete or real-world events.
Children develop an understanding of conservation, understanding that an object's mass, volume, and number remain constant despite changes in shape. For example, a child understands that reshaping a piece of Play-Doh doesn't change its quantity.
They further develop the idea of reversibility, or the ability to reverse actions mentally. This is evident when they realize that pouring water into a differently shaped container doesn't change its volume. They also recognize that mathematical operations, like addition and subtraction or multiplication and division, are reversible.
At this stage, children also learn the concept of classification, which involves classifying items into various sets or subsets and understanding their interrelations.
For example, a 10-year-old with a baseball card collection might organize the cards by a player's position, team, or statistics.
在皮亚杰的具体运算阶段,即 7 至 11 岁,儿童表现出显著的逻辑思维能力提升,特别是与有形的现实世界事件相关的逻辑思维能力。这一阶段的特点是发展了几个基本的认知概念,包括守恒、可逆性和分类,所有这些都支持儿童不断发展的结构化思维能力。
守恒和数量恒定性
具体运算阶段的一个重要认知里程碑是对守恒的理…