Examlex
Jake can complete an oil change in 45 minutes and he can write a poem in 90 minutes. Ming-la can complete an oil change in 30 minutes and she can write a poem in 90 minutes. Jake's opportunity cost of writing a poem is lower than Ming-la's opportunity cost of writing a poem.
Sensorimotor
Pertaining to the combined processes of sensory perception and motor action.
Preoperational
A stage in Jean Piaget's theory of cognitive development where children from ages 2 to 7 engage in symbolic play and struggle with logic and taking the perspective of others.
Nonstage Theories
Cognitive development theories that argue against the idea of distinct, universal stages of cognitive growth, suggesting instead that development is a more continuous and fluid process.
Gradual Acquisition
The slow and steady process of learning or obtaining knowledge or skills over time.
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