Chris wants to build a birdhouse. He understands how to choose materials and measure them, but has never used woodworking tools. His father patiently demonstrates, then allows Chris to practice. When Chris cannot remember how to proceed in the process, his father demonstrates again, then guides Chris through the process. This demonstrates Vygotsky's concept of:

The zone of proximal development

Explanation:

The zone of proximal development -

It is the closest difference between the capacity of the learner without any proper assistance  to the guidance from the any professional , is referred to as the zone of proximal development .

This concept is used in the field of education , where it acts as a test of the knowledge given by the professional in real action .

Hence , from the given scenario of the question ,

The correct answer is " The zone of proximal development " .

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.

the earth’s crust is broken into separate pieces called tectonic plates (fig. 7.14). recall that the crust is the solid, rocky, outer shell of the planet. it is composed of two distinctly different types of material: the less-dense continental crust and the more-dense oceanic crust. both types of crust rest atop solid, upper mantle material. the upper mantle, in turn, floats on a denser layer of lower mantle that is much like thick molten tar.

each tectonic plate is free-floating and can move independently. earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. the term fault is used to describe the boundary between tectonic plates. most of the earthquakes and volcanoes around the pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. other observable results of short-term plate movement include the gradual widening of the great rift lakes in eastern africa and the rising of the himalayan mountain range. the motion of plates can be described in four general patterns:

collision: when two continental plates are shoved together

subduction: when one plate plunges beneath another (fig. 7.15)

spreading: when two plates are pushed apart (fig. 7.15)

transform faulting: when two plates slide past each other (fig. 7.15)