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1. Which Piaget's concept allows in the best way to explain a difference between preschoolers and school-age children in their perception and understanding of other people's point of view? 
2. In the video clip below a 5 and 9 years old children are working on Piaget's water-level problem and only an older child solves it correctly. Which characteristic of thinking, according to Piaget, does a younger child lack?

Min 500 words. 

https://touro.instructure.com/courses/32020/files/1242686/download?download_frd=1

https://touro.instructure.com/courses/32020/files/1242666/download?download_frd=1

https://touro.instructure.com/courses/32020/files/1242628/download?download_frd=1