Examlex
According to Kirchhoff's laws, the continuous spectrum of light from a hot star, after passing through a cool gas cloud,
Preoperational Thinking
A stage in Piaget's theory of cognitive development where children from 2 to 7 years old engage in symbolic play but lack operations (logical rules).
Zone Of Proximal Development
The difference between what a learner can do without help and what they can achieve with guidance and encouragement from a skilled partner.
Neo-Piagetians
Developmentalists who have elaborated on Piaget’s theory, believing that children’s cognitive development is more specific in many respects than Piaget thought and giving more emphasis to how children use memory, attention, and strategies to process information.
Zone Of Proximal Development
A concept in Vygotsky's theory that represents the difference between what a learner can do without help and what they can achieve with guidance and encouragement from a skilled partner.
Q12: Most of the mass of the universe-98%-is
Q28: Adaptive optics involves<br>A) reconfiguration of the primary
Q47: Which of these is believed to be
Q109: Light from each part of the source
Q120: What technique is necessary to produce a
Q134: The important breakthrough in theoretical physics
Q160: Compared to the direction of the incoming
Q160: How do the nuclei of the isotopes
Q221: The near and far sides of the
Q350: The epicycle, in the Greek planetary model,