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The two main methods of separation are steel separating springs and elastomeric separators.
Lev Vygotsky
A Russian psychologist known for his work on psychological development in children, emphasizing the role of social interaction and cultural tools in learning.
Number Conservation
A cognitive ability in children that demonstrates their understanding that quantity remains the same despite changes in shape or arrangement.
Preoperational Thought
A stage in Piaget's cognitive development theory characterized by symbolic thinking, egocentrism, and a lack of logical reasoning in children aged 2 to 7 years.
Centration
A characteristic of preoperational thought in which the child tends to focus on one salient feature of an experience or event at a time.
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Q34: The term _ means without natural teeth.
Q36: How did the War of 1812 and
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Q64: Political party that evolved out of the