Cognitive Level Study Age/ stage picture – Piagetian model Stages of cognitive development Cognitive level Age (years) Sensori-motor 0/2 Pre-operational 2/7 Concrete operational Early concrete (2A) 5/6 Mid concrete (2A/2B) 7/9 Late concrete (2B) 10/11 Concrete generalisation (2B*) Formal operational Early formal (3A) 11/13 Late formal (3A/3B) Formal generalisation (3B) 14/15 Piaget’s Stages of Cognitive Development. Piaget identified four stages in cognitive development: ■■ Sensorimotor stage (Infancy). In this period (which has 6 stages), intelligence is demonstrated through motor activity without the use of symbols. Knowledge of the world is limited (but developing) because it is based on physical interactions / experiences. Children acquire object permanence at about 7 months of age (memory). Physical development (mobility) allows the child to begin developing new intellectual abilities. Some symbolic (language) abilities are developed at the end of this stage. ■■ Pre-operational stage (Toddler and Early Childhood). In this period (which has two sub-stages), intelligence is demonstrated through the use of symbols, language use matures, and memory and imagination are developed, but thinking is done in a non-logical, non-reversible manner. Egocentric thinking predominates ■■ Concrete operational stage (Elementary and early adolescence). In this stage (characterized by 7 types of conservation: number, length, liquid, mass, weight, area, volume), intelligence is demonstrated through logical and systematic manipulation of symbols related to concrete objects. Numbers can be manipulated. People can deduce from 3+4=7 that 7-3=4. Operational thinking develops (mental actions that are reversible). Egocentric thought diminishes. ■■ Formal operational stage (Adolescence and adulthood). In this stage, intelligence is demonstrated through the logical use of symbols related to abstract concepts. People can handle abstract mathematics, algebra. If x + a = y + b, then x – y = b - a etc. They can handle the concept without using numbers. Early in the period there is a return to egocentric thought. Only 35% of high school graduates in industrialized countries obtain formal operations; many people do not think formally during adulthood. Profile of cognitive levels of 6th class, 1st and 2nd Year students Profile of cognitive levels of 1st and 2nd Year University science students 60 52 50 44 40 40 6th class (Primary level) 1st Year (Second level) 30 2nd Year (Second level) 20 10 9 5 0 0 2B 2B 2B* 0 3A 1 1 3A/3B 25 20 17 15 2 1 0 2B 2B 2B* 3A 3A/3B 3B Piagetian level Piagetian level Section 1 - Page 7 Sensors Tutor Guide (FINAL)2.indd 15 30 10 7 4 3 % of cohort (N=162) 38 40 % of cohort 50 47 46 44 Facilitator Handbook Autumn 2009 16/10/2009 17:00:46