Vygotsky and his followers have proposed that children and adolescents cognitive development is promoted when they work within their zone of proximal development and that scaffolding enables them to do this successfully. What role does the teacher play in this effort? How might a teacher apply this to a reading, math or science lesson? What would it look like?

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points

Describe cytokinesis in plants and animals. in animals: in plants.

The two metal spheres in the figure are connected by a metal wire with w switch in the middle. initially the switch is open. sphere 1, with the larger radius, i'd given a positive charge. sphere 2, with the smaller radius, is neutral. then the switch is closed. afterward, sphere 1 has charge q1, is at potential v1 and the electric field strength at its surface is e1. the values for sphere 2 are q2, v2, and e2. a. is v1 < ,> , or = to v2? explain. b. is q2 < , > , or = explain? c. is e1 < ,> ,or = to e2? explain?