According to Steiner, pupils in kindergarten should focus on the environment and interact with others, rather than being taught through textbooks. He emphasized that academic content can be taught later in life, and that writing skills should be developed before reading. Steiner also believed that creative and imaginative capabilities should be developed in children aged 7-14, and that this age group is best suited to learn foreign languages. In terms of curriculum delivery, Steiner's Waldorf School focused on increasing environmental connectedness for pupils under the age of 7, while after 7 years they focused on making pupils learn through performative arts. The school aimed to spiritually uplift its students by having them go through life histories of different saints and Old Testament stories. However, critics have argued that the emphasis on spiritual development can be seen as too much focus on religion.