贝克认为对人的心理发展的认识和理解是探讨人的价值学习和教育的重要背景材料。贝克认为不存在一种随年龄增长而出现的总体上的提高，“发展”未必意味着改善，从儿童期到青春期道德方面的变化是对改变的生活环境的最佳适应。他认为儿童、青少年和成年人的道德是平等的，成人教师在道德教育中仍起重要作用，最好的教育方式是“对话”。 Baker believes that understanding and understanding of people’s psychological development is an important background material for exploring value learning and education for people. Baker does not think there is a general increase with age. “Development” does not necessarily mean improvement. The change from childhood to adolescence is the best adaptation to a changing living environment. He believes that the ethics of children, adolescents and adults are equal. Adult teachers still play an important role in moral education. The best way of education is “dialogue.”