|J.||II Sensorimotor Period (0-2 years)15|
|K.||III Concrete Operations Period (2-11 years)53|
|L.||Preoperational Subperiod (2-7 years) I: Changes from Sensorimotor54|
|M.||Preoperational Subperiod (2-7 years) II: Differences from Adult58|
|N.||Concrete Operations Subperiod (7-11 years) I: Introduction67|
|O.||Concrete Operations Subperiod (7-11 years) II: Properties of Groups and Groupings69|
|P.||Concrete Operations Subperiod (7-11 years) III: Some Representative Problems75|
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Publication information: Book title: The Origins of Intellect:Piaget's Theory. Contributors: John L. Phillips Jr. - Author. Publisher: W. H. Freeman. Place of publication: San Francisco. Publication year: 1969. Page number: xvii.
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